Question

Class - X
PHYSICS
If a charged body having an initial charge +5C acquires some electrons and has a
final charge +3C then number of electrons acquired by this body is
1) 1.25 x 1018 2) 1.25 X 1019
3) 1.5 1016 4) 1.5 1019​

Answer 1

Answer:

Correct option is

C

3.75×10

13

Total charge on the body equals the difference of charge due to protons and charge due to electrons.

−2×10

−6

=(2.5×10

13

−n)×1.6×10

−19

n=3.75×10

13