Question

When a negative charge body minus 10 microcoulomb comes in contact with positively + 50 microcoulomb charged body net charge on them?

Answer 1

Net charge=-10 microcoulomb + 50 microcoulomb =40 microcoulomb

Answer 2

answer : net charge = 40 microcoulomb

explanation : body becomes negative charge when electrons are added on that body. and body becomes positive charge when electrons are ejected from that body.

here two bodies are available. one is negative charge while other is positive.

let A and B are two bodies .

charge on body A = -10 microcoulomb

charge on body B = 50 microcoulomb

we know, charge is scalar quantity so, we can apply algebraic expressions on it.

so, net charge on them when both bodies comes in contact = -10 microcoulomb + 50 microcoulomb

= (-10 + 50) microcoulomb

= 40 microcoulomb