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习题练习:.Resistor.

 作者: admin 发布日期: 2024-08-22 15:34   总分: 50分  得分: _____________

答题人: 游客未登录  开始时间: 24年08月22日 11:12  切换到: 整卷模式

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1#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.09: In the circuiw m: t67gklheyfq:/adu; sm2-t shown, an electric current exists in the metal resistor connected to the battery. Which one of the following qwu2mfg:s7tade;l6kh my : /-choices best describes the direction of electron flow through the resistor and the direction of the electric field through the interior of the resistor?


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2#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.06: When any four resistors are connected iny99l/ sxfl ia+ parallel, the_________each resistor iaslf 99+yx/lis the same.

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3#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.33: A current through y)qa/ hi2d5j nthe thin filament wire of a lightbulb causes the filament to become white hot, w h5n2a/yqj id)hile the larger wires connected to the lightbulb remain much cooler. This happens because

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4#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.08: Some standard householg;f ft; +,kzixd lights are being replaced with LEDs. LED is the acrkff;,;tzxg + ionym for which one of the following choices?

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5#
 
多选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.16: A cylindrical graphite resistor has lengthvcryd29 )p5xccpo;q( L and cross-sectional area A. It is to be placed into a circuit, but it first must be cut in half so that the new length is 1/2 ;xq pd)ocpr(52yc vc9 L. What is the ratio of the new resistivity to the old resistivity of the cylindrical resistor?

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6#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.20: Wire I and wire II are made of the same materialulk q*rr/j qj5p (rm;1u7pu e6ou;4ny. Wire II has twice the diamjq(pn;l6eyu up5jo7r; q1r4 kurm /u* eter and twice the length of I. If I has resistance R, II has resistance

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7#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.31: Wire Y is made of the same material but has twice the diameter and haltuklvft,0d95o + n (twf the length of wire X. If wire X has,ktow05v9f (+ ltdtn u a resistance of R then wire Y would have a resistance of

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8#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.23: A cylindrical resistor m7n4sm q.50u9;33/ mazizzne hny npe has length L and radius r. This piece of material is then drawn so that it is a cylinder winsum zz09i/ z5ehnp ymn3qem.43 an;7 th new length 2L. What happens to the resistance of this material because of this process?

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9#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.27: A junior Thomas Edisohb: 9*aky,9 air1w6tf6j vbomsn9iu9n wants to make a brighter light bulb. He decides to modify the filament. How should the filament of a lightbulb be modified in order to make the lightbulb produce more light at ai9vmj b,akutiw9 safyh1nr9o:9 *6b6 given voltage?


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10#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  16.07: Three cylindrical resistors are made of the sam ooocp6xyj,gyp 2q:yv6o55.z e material. The length and radius of each resistor is:65 ygovc jox,2q.oz:p yo6py 5
Resistor 1: Length L, radius r
Resistor 2: Length L/2,radius r/2
Resistor 3: Length L/4,radius r/2
Which one of the following choices correctly ranks the resistance of these resistors (R1,R2,R3)?

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11#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  13.22: Four resistors, each of resistance R, are connected to a battery0t:4-x ;m znc fedkk0q in the following way: “Two resistors are connected in series. Td0xn - cf:t40ke zmq;khis combination of two resistors is connected in parallel to a third resistor. This set of three resistors is connected in series to a fourth resistor.” What is the equivalent resistance of this arrangement of four resistors?

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12#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  95.35: The voltmeter in the accompanying circuit diagram has internal res)d ug6,fu/l d*ac.go r1bk zoc5d.x-xistance 10.0 kW and the ammeter ho. udr- b,c.x1c65* fkgoax u/l z)ddgas internal resistance 25.0 ohm. The ammeter reading is 1.00 mA. The voltmeter reading is most nearly:


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13#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.37: Consider the compound circuit shown to the right. The three bulbsizj6wl, 8 oh8 /spx2sv 1, 2, and 3 - represented as resistors zshwvxsi6 l pj8,82o /in the diagram
- are identical. Which of the following statements are true?
I. Bulb 3 is brighter than bulb 1 or 2.
II. Bulb 3 has more current passing through it than bulb 1 or 2.
III. Bulb 3 has a greater voltage drop across it than bulb 1 or 2.


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14#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.30: Given the simple electrical circuit at the right. If the current in all +/sfiw c2ff5l three resistors is equal, which of the following statements muf+ifc5 /s 2flwst be true?


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15#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.37: The diagram at rixll( 9 pmq.se3ght represents a simple electric circuit composed of 5 identical light bulbs and 2 flaql3.me x(l9s pshlight cells. Which bulb (or bulbs)
would you expect to be the brightest?


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16#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.03: Which of the following statement9 f.dkn uy4d(-ptr.4gsn/ye es is NOT true concerning the simple circui drs -ueng9y/eyt.k (n4p4df .t shown where resistors R1, R2 and R3 are have equal resistances?


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17#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  17.29: Two lightbulbs X andY are connected5fy-lm yf b.2s8i omzmt/j/+p in series to a battery. Bulb X is brighter than bulb Y. Assume all circuit elements are ideal. If bulbs X andY are connected in parallel with each other to the same battery, which one of the following choices best represents w5 y-it 8 ps/y.fmbol+2z/mjmf hat is observed?


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18#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  06.34: How many coulombs will pa2otx)k+dj t u63gejn9ss through the identified resistor in 5 seconds once the circuit was t utgj+d2k on)e3j96x closed?


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19#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  00.23: If all of the reslh0dec6,12ot / *h;9j jr5u fldboxjuistors in the following simple circuit have the same resistance, which would dl /56*l jo eob9duxtf0h, rdj1u jch2;issipate the greatest power?


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20#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  98.34: In the accompanying circuit diavv(mfum3*z 2hlgb/(h8 qa b3, msk9oa gram, the current through the 6.0 Ω resistor is 1.0 A. Whatsbh a/3, lm 92oauqv3v*zhb(mgk fm (8 is the power supply voltage V?


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21#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.27: Three resistors R1, R2, andtjyl-wd7 9iu3 -9e fsvzyo 8r4i x*qn* R3 are connected in series to a battery. Suppose R1 carries a current of 2.0 A, R2 has a resistance of 3.0Ω, and R3 dissipates 6.0 W of power. What is the voltage acr-z7wri3nsi jdo tx 8uv *ey*fq-y9 l49oss R3?

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22#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.40: Three different resistors R1, R2 andR3 are uedh6x 3w/j )u1mzr2zconnected in parallel to a battery. Suppose R1 1 zhw/z m3)urjxu6d2ehas 2V across it, R2 = 4Ω, and R3 dissipates 6 W. What is the current in R3?

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23#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.13: A heating coil is rated 1200 watts and 120 volts. What is the mapdj wrb3. 3t9rximum value of the b3t .j3rrwdp9current under these conditions?

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24#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  99.23: What is the resistance 1 u(h9bxo 3zrm:i e 92:v*sf-vxh bcoqof a 60 watt lightbulb designed to operate at 120 v:hsv um9*boxf1z9h -c ib o3r (vx2eq:olts?

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25#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm re)wp- hh1zb riadc r:j* *97sscsistor that is dissipating 36 watt9b )cc *zs *srrhhpd-:1wa7ijs of power?

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26#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  05.21: A household iron used to press clothes is marked "120 volt, 60 iftwp;. m:r1x1lt xa60 watt.” In normal us. 61pwaimr:;1xfxt tle, the current in it is

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27#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.05: Which of the f9pq+aespce) ,vw. z+yollowing resistances could NOT be produced by a circuit containing only three identiz +) ea pwsp+,9vqyec.cal 6Ω resistors?

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28#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  94.37: You are given three 1.0 Ω resistors. Wh04bunt97 m k7 k8fio*cz+hsvkich of the following equivalent resistances CANNOT be p hbscziu8 ot+0 mnvk94 k7*k7froduced using all three resistors?

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29#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.06: Three resistors of different 9acm:qax k,, ud1. nwuvalues can be connected together in different configurations. If all three., mqwk9cnuax u,:d1a resistors are used in a circuit, how many different values of total resistance can be produced?

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30#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  97.35: When a single resistor is connected to a battery, 37w5bv rod8 vh /u5ok mhub+)ra total power P is dissipated in the circuit. How much total power is dissipated in a circuit if n identical resistors are connected in series using the same battery? Assume the internal resiom/8u 5bhd5r+wk hvrv )73obustance of the battery is zero.

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31#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  96.16: When two resistors, having esl3 + )gkmu .bkvk.9dnc+s9f46rp rk resistance R1 and R2, are connected in parallel, the equivalent resistance of the combination is 5Ω . Which of rk.) kspd9.3rbv+ k em snf4+cu9lg6k the following statements about the resistances is correct?

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32#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.46: A hotplate is designed such that it has a resistance of 12Ω when o53ptkga. ;7fkumm2tdperating at 120 volts. What is the minimum amount of time that it would take to warm 0.45 kg of water from tukk57m; mafd.p2t3 g$15^{\circ}C$ to$85^{\circ}C$?

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33#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.09: How much current flows through a 4 ohm resistor that is dissipating irbhk0hh fk1y*d sa5-f*3ou9 36 watts of p3h *dbshhakk iu -9*yf501rofower?

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34#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.24: An electric heater draws 13 amperes of current when connected to 120 voltg c39*p h3r)- jaialrfs. If the price of electricit 9-)3jagr*l cfphr a3iy is $0.10/kWh, what would be the approximate cost of running the heater for 8 hours?

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35#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  08.05 Approximately how much would it cost to keep a 100W lightb hvckrb ;e:9p,ulb lit continuouv kh 9ce,b:rp;sly for 1 year at a rate of $0.10/(kW.hr) ?

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36#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.09: A constant current of 4.00 A through a lightbulb results in a power of 2;xm oo7,ob8k,v8bz oyh,gvo(4.0 W associated with the bulb. Which one of the following choices best represents the reo(obh,bk o, 8 7z,mxoo; vvgy8sistance of the lightbulb?

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37#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  01.10: Each member of a family of six owns a computer raw*q l*m;odr2 rted at 500 watts in a 120 V circuit. If all computers are plugged into lmqo;w2r**dr a single circuit protected by a 20 ampere fuse, what is the maximum number of the computers can be operating at the sametime?

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38#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.16: A 9-volt battery is connected to md8lx:,b qth*four resistors to form a simple circuit as shown to the riglxt,*:bmh qd8ht.
How would the current through the 2 ohm resistor compare to the current through the 4 ohm resistor?


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39#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  03.17: A 9-volt battery is connected to fourni+) o3w ea.jl2q-q o jljyj,0 resistors to form a simple circuit as shoyl) oljj0oi-ja eqw j+q2.n3,wn to the right.
What would be the potential at point B with respect to point C in the above circuit?


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40#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an idea7t3g:t lubph8w( m.j8:unld i l ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 al8l 8j:mhntu3pdbt7wu .(i g :mperes.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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41#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an id:sbkocb k 2f/*w4-qq ieal ammeter, a switch and three resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0sck i/ofb4q-:b qkw2 * amperes.
With the switch open, what must be the voltage supplied by the battery?


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42#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a switch and three res2kz kh6 d.ix3c quh0s3g*s2u*c4kjzyistors are connected as shown. With the switch open as shown in the diagram th4263jz*ch2sqcxkkh dgys .k zi0u u3*e ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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43#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  12.14: For the circuit shown to the right, what is the equivalent resistance7 o sk. u85 f3nmlqn +nssi4wl8p.9cyr? Assume that all wires are ideal, the battery has no intern35n .9mn.lp scoyls fknr47q8is +wu8al resistance, and all three resistors have identical resistance R.


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44#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  09.07: The equivalent resistance of the circuit shown to the right witfc*kn/8ix;y th1r8l 6dz w ve34x -zezh resistanzd 6yk3ze r1l 8xhetiw/4fcz8-x;*v nces $R_1 = 4.00Ω$ , $R_2 = 3.00Ω$ and $R_3= 2.00Ω$ is


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45#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.20: The diagram below shows fi t8 v1oop xk k(hy70txs*i*bx0ve identical resistors connected in a combination series and parallel circuit txy*0o81(xk0b 7kt x*hiv tposo a voltage source.
Through which resistor(s) would there be the greatest current?


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46#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  04.21: The diagram below shows five identical resistor. hm 1;a0bzi2hmeo qx+s connected in a combination series and paralle+; bx hmm 2ai0qz.oe1hl circuit to a voltage source.
Which resistor(s) have the greatest rate of energy dissipation?


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47#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  07.29: In the circuit diagram, all +i - r:nrq8jjm of the bulbs are identical. Which bulb will bjmq:-i +j8rnr e the brightest?


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48#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.21: An ideal battery, an ideal ammeter, a switch and thrm3dwaw6d/b3b ee resistors are connected as shown. With the switch open as shown in the diagram the ammeter reads 2.0 ambdw3mb6w3/da peres.
With the switch open, what would be the potential difference across the 15 ohm resistor?


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49#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.22: An ideal battery, an idek/1;:mq dd;.j t/k8 :wvk5lwd xjxzdqal ammeter, a switch and three resistors are connected as shodq. wx;1d /jwv;:mxzdkkj5d:l tk/8 qwn. With the switch open as shown in the diagram the ammeter reads 2.0 amperes.
With the switch open, what must be the voltage supplied by the battery?


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50#
 
单选题 ( 1.0 分) 切至整卷模式 搜藏此题  
  02.23: An ideal battery, an ideal ammeter, a swituv,:b)ljxd(s gjek x/.. 6pawch and three resistors are connected as shown. With tkxj,b6/ eu gdwvs:( lj)px ..ahe switch open as shown in the diagram the ammeter reads 2.0 amperes.
When the switch is closed, what would be the current in the circuit?


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