Question

A positively charged glass rod is bought close to a suspended metal needle. What

can we say about the charge on the needle given that the needle is
a) attracted ?
b) repelled ?

Answer 1

This depends because the electrostatic force obeys the principle that states that force between both of the particles does not get affected by the charges of the other thus if the needle is getting attracted it possess negative charges( the opposite charge) .And if they repel it means they have the same charges ( positive charges).

Answer 2

attracted

Step-by-step explanation:

opposite charges attract each other when the rub against each other