Question

Charge on a body which carries 200 excess electron is

Answer 1

Explanation:

electron =1.6×10^-19c

charge on 1 electron = 1.6×10^-19c

50 coulomb due to 200 excess electron

=200×(-e)=-200×1.6×10^-19

=2×1.6×10^-17=-3.2×10^-17 coulomb

Answer 2

Given:

• A body carries 200 excess electrons.

To find:

Net charge on the body ?

Calculation:

We know that :

• Charge of a single electron is -1.6 × 10^(-19) C.

Now, since the body carries excess electrons, it's net charge will be negative and equal to :

$q = n \times e$

$\implies q = 200 \times ( - 1.6 \times {10}^{ -19} )$

$\implies q = - 3.2 \times {10}^{ -19 + 2}$

$\implies q = - 3.2 \times {10}^{ -17} \: C$

So, the net charge of the body is -3.2 × 10^(-17) C.