94.07: A positively charged cohfk,q bx 9p4+;yv kw8cnductor attracts a second object. Which of the following statements could b ;kpk yqw x8+b,c4hf9ve true?
I. The second object is a conductor with negative net charge.
II. The second object is a conductor with zero net charge.
III. The second object is an insulator with zero net charge.

  96.07: An amber rod is given a net negative charge and held at rest. Which of thprsnbr(j7,a - 1c(d a-jk ar)ue following statjr- ,(rnjapa7 d cbuak(1s)- rements is true?

  15.08: A negatively charged balloon remains at rest wr5hlte dq,4mh x)r4-s hen placed on a vertical wall. Which one of the following terms is most closely associated with the electricalh-r5r msdq,elxht)4 4 phenomenon allowing the balloon to remain on the wall?

  01.37: A long straight wire viewed end on carries a con.s)h iv9xhepp ofj6*ufu n .h-4tl0z-ventional electric current out of the paper as shown in the diagram. What is thevs9e-xiu6 l)z h.pf- f* 0upohth.jn 4 direction of the associated electric field at point P?

  97.05: Point charges 1 and 2 have equal magnitude. rjp86pc)6 b(;obmcvg The diagram to the right shows the electric field lines )jp;b mo(v 6c8p6bc grsurrounding them. Which of the following statements is true?

  07.26: For the diagram shown below, what is thei( zv+q1op7eu ratio of the charges q1 and q2 , where the diagram shown has a piqvzo +7(e1urepresentation of the field lines in the space near the charges.

  05.17: A small positive test charge *nkpuf,6 a)x2 e(uxonolv8 wry1iox,q4: m2 gis placed at point P in the region near two charges. Which of the following arrows indicates 12ni4lo m8 wx,*qx :6(kporn yau x2vufe)o,g the direction of the force on the positive test charge?

  11.05: A positively charged rod is broughl ()aazg1 xo 6xlp81-eaomz8p t near a metal electroscope that is initially uncharged. As shown in the figure, the rod does not touch the electroscope. There is no charge transfer between the ell zpxz-6g1olmp 1a oaex()88a ectroscope and rod, but the leaves of the electroscope move apart from each other when the rod is brought near the top of the electroscope. Which one of the following choices is the best explanation for this phenomenon?

  04.15: A positively charged object2 f gl7nn,ox/ leq0o+4yozw:j:- wesw is brought near but not in contact with the top of an uncharged gold leaf electroscope. The experimenter then briefly touches the electroscope with a finger. The:n-sn42oz+/w:wx f7yle o,qlg 0jowe finger is removed, followed by the removal of the positively charged object. What happens to the leaves of the electroscope when a negative charge is now brought near but not in contact with the top of the electroscope?

  98.09: An electroscope is given a positive charge, causing its foil leaves /tn enn,r, 7n8jvcz*x to separate. When an object is brought near the top plate of the electroscope, the foils separate even furthevrz 7e/tncn*jx,, n8 nr. We could conclude

  97.06: A charged rod is placed between two insulated conducting spheres as shb9 7bplsy-i(hown. The spheres have no net7 p(lb- y9ibsh charge. Region II has the same polarity as Region

  09.23: A person rubs a neutral comb through their hair and the comb becovvdof67u-u jvl xj7*3mes negatively chadxvv 6uu7f v-j3*j7lo rged. Which of the following is the best explanation for this phenomenon?

  02.09: When a positive electrically charged fhb+ oqip1/o* (jz4c pglass rod is brought near a neutral hollow metal sphere suspended by an insulating string, the spher z1+o o 4bpq/pihfc*j(e will be attracted to the rod because:

  02.24: Two small hollow metal spheres hung on insulating threads atj;egs.sy p-) htract one another as shown. It is known that a positively charged rod wilg.) e;hyjs-spl attract ball A.
I. Ball A has a positive charge
II. Ball B has a negative charge
III. Ball A and Ball B have opposite charges
Which of the above can be correctly concluded about the charge on the balls?

  06.36: Two uniformly charged non-conducting spheres on insulljff .(+d re vje;q0i(ating bases areplaced on an air table. Sphere A has a cha0;e.(e drq+lv(jfji frge +3Q coulombs and sphere B has a charge +Q coulombs. Which of the following correctly illustrates the magnitude and direction of the electrostatic force between the spheres when they are released?