Question

Select the answers which complete the statements below (or enter D if one cannot tell). E.g., if answer A completes the first statement, and answer B the others, enter ABBBB.

A) positive B) negative C) neutral D) cannot tell

A positively charged ball is brought close to a neutral isolated conductor. The conductor is then grounded, while the ball is kept close. If the ball is first taken away and then the ground connection is removed, the conductor has a ____ charge.

A positive point charge is brought near the outside surface of a neutral conducting sphere and released. The initial position of the point charge is on the positive x axis and the sphere is centred on the origin. The point charge moves in the ____ x direction. (If the point charge does not move, select answer C.)

Two neutral metal spheres are mounted on insulating supports. They are connected by a wire.

A positively charged glass rod is brought near sphere 1. The wire connecting the spheres is removed and the charged rod is then taken away. Now the charge on sphere 2 is ____ .

A negatively charged glass rod repels an object suspended by a non-conducting thread. The charge on the object is ____ .

A negatively charged glass rod attracts an object suspended by a non-conducting thread. The charge on the object is ____ .

Answer 1

So the answer would be BBABD.

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