Question

10^18 electrons move from point A to point B inside a metal wire in 4 seconds. What is the current passing through the wire?​

Answer 1

Answer:

25x10^16 A

Explanation:

I=Q/T...........(1)

Q=ne........(2)

So(2) in (1)

I=ne/T

I=10^18/4

I=25x10^16 A

Answer 2

Electric Current

• The flow of electric charges in a conductor is called electric current.

• Unit of electric charge is coulomb or C, unit of electric current is ampere or A.

Given:

• Number of electrons, Q = 10^18
• Time of flow, t = 4 seconds

To find: the current (I) passing through the wire

Solution: We know the formula,

• I = Q / t
• or, I = 10^18 / 4
• or, I = 2.5 × 10^17

Answer:

Therefore 2.5 × 10^17 A current passes through the wire.

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