Question

Calculate the number of electrons flowing through a conductor if 3 A current flows through it in 6 minutes.

Answer 1

hello mate..

u should try this formula like me

current(i) = charge(q) / time(t in sec)

while q = n × e

so i = n × e / t ( e= 1.6 × 10^-19 charge on electron)

we has to find n so

n = i × t / e

put the value, we now have

n = 3 A × (60 × 6 sec) / 1.6 × 10^-19

n = 675 × 10^19

or n = 6.8 × 10^21 electrons...

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