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Question: If the electric current through an electric bulb is 3.2 A, the number of electrons flow through it i...

If the electric current through an electric bulb is 3.2 A, the number of electrons flow through it in1 second is –

A

2 × 109

B

2 × 1019

C

3.2 × 109

D

1.6 × 1018

Answer

2 × 1019

Explanation

Solution

i =

n =3.2×11.6×10−19\frac { 3.2 \times 1 } { 1.6 \times 10 ^ { - 19 } }= 2 × 1019