Physics

Problem

Two identical copper wires, P and Q, carry steady currents of

2\,\text{A}

and

3\,\text{A}

respectively for the same time interval of

5\,\text{s}

. What is the ratio of the total number of electrons that pass through P to that through Q? a)

3{:}2

1{:}1

2{:}3

4{:}9