Question

Two vertical metallic plates carrying equal and opposite charges are kept parallel to each other like a parallel plate capacitor. A small spherical metallic ball is suspended by a long insulated thread such that it hangs freely in the centre of the two metallic plates. The ball, which is uncharged, is taken slowly towards the positively charged plate and is made to touch that plate. Then the ball will(a) stick to the positively charged plate(b) come back to its original position and will remain there(c) oscillate between the two plates touching each plate in turn(d) oscillate between the two plates without touch them

Answer 1

It will stick to the positively charged plate

Hence option A is correct

Answer 2

Answer:

C is the answer

Explanation:

Because if ball move toward +ve capacitor plate then ball have positive charge so then negative charge plate attract then ball move toward negative plate then positive then negative as soon as