Home
Class 12
PHYSICS
A current of 1 mA is flowing through a ...

A current of 1 mA is flowing through a copper wire. How many electrons will pass a given point in one second `[e = 1.6 xx 10^(19)`Coulomb]

A

`6.25 xx 10^(19)`

B

`6.25 xx 10^(15)`

C

`6.25 xx 10^(31)`

D

`6.25 xx 10^(8)`

Text Solution

Verified by Experts

The correct Answer is:
B
For `I^(st)` second
`q = I xx t = 1mC`
No. Of electron `=q/e = (1 xx 10^(-3))/(1.6 xx 10^(-19)) = 6.25 xx 10^(15)`
Promotional Banner

Similar Questions

Explore conceptually related problems

How many electrons pass in one second when current is 1 A?

A current of 1.6 A is flowing in a conductor. The number of electrons flowing per second through the conductor is

How many electrons pass through a bulb in 1 min, if the current is 400 mA. (e=1.6xx10^(-19)C) ?

A metal wire carries a current of 1 ampere. The number of electrons passing a given point in the wire in 1 second is

1.6 mA current is flowing in conducting wire then the number of electrons flowing per second is

A conductor carries a current of 0.2 A . Find the amount of charge that will pass through the cross-section of the conductor in 30 s . How many electrons will flow in this time interval if the charge on one electron is 1.6 xx 10^-19 C ?

If a current of 0.5A flows through a metallic wire for 2 hours, then how many electrons would flow through the wire ?