Question

A current Of 5mA is passing through a wire. How many
electrons are passing per minute through any cross
Section of the wire ?
pls and it as fast as possible..​

Answer 1

Answer:

$current = \frac{n \times charge}{time} \\ 5 \times {10}^{ - 3} = \frac{n \times 1.6 \times {10}^{ - 19} }{60} \\ n = 18.75 \times {10}^{17}$

hope the answer will help you

Answer 2

Answer:

$\bold{1.875 \times {10}^{18} e}$

Explanation:

Given :

Current (I) = 5mA = 5×10-³ A

Time = 60s

To Find :

No. of electrons passing through any cross section of wire

Using Formula :

$\boxed{\red{I = \frac{q}{t}}}$

Correct Solution :

$\frac{n \times 1.6 \times {10}^{ - 19} }{60}$

$= \frac{5 \times {10}^{ - 3} \times 60 }{1.6 \times {10}^{ - 19} }$

$= \frac{10 \times 5 \times {10}^{ - 3} \times 60 \times {10}^{19} }{16}$

$\boxed{\pink{ n = 1.875 \times {10}^{18} e}}$