2. A positively charged rod is brought close to (but not touched) a neutral pith ball...
2. A positively charged rod is brought close to (but not touched) a neutral pith ball hanging by a thread. The pith ball
a. becomes negatively charged b. is repelled by the rod
c. becomes positively charged d. is attracted to the rod
e. remains hanging by a thread motionless and unaffected by the rod
Homework Answers
Pith ball is neutral ,it's doesn't mean that pith ball have no charge.This simply means that the net charge on the pith ball is zero that means pith ball have equal number of positive and negative charges.
When we brought positively charged rod close to the neutral pith ball then the ball gets polarised (as shown in the pic).
Since ball have equal number of +ve and -ve charges then the net force on the ball will cancle out.
Finaly "option e" will be the correct answer.
For any doubt please comment and please give an up vote . Thank you
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