Question

How many electrons passed through the wire in 1 min of current through the wire is 400mA?
[Q=ne]
[I = 400mA]
[Time=1min=60sec]
please solve​

Answer 1

I= 220 mA =0.22 A

I = Q/T

0.22 = Q/60

Q= 0.22 x 60 = 13.2 C

Q= ne

Where n= number of electrons

E= charge on electrons = 1.6 x 10-19

13.2 C = n x 1.6 x 10-19

n = 13.2/1.6 x 10-19

n = 8.25 x 1019





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Answer 2

Answer:

Current Electricity

Explanation:

★ Current ( I ) = Charge ( Q ) / Time ( T ) = no. of electrons ( n ) / time ( T )

» 400 mA = n × 1.6 × 10-¹⁹ / 60 seconds

» 400 × 10-³ × 60 = n × 1.6 × 10-¹⁹

» 24 = n × 16 × 10-²⁰

n = 24 / 16 × 10-²⁰

n = 3 / 2 × 10²⁰