Question

A charge of `24 C` passes through a circuit every `12 s`. If the circuit can generate `8 W` of power, what is the circuit's resistance?

Answer 1

Resistance `R=2" "`Ohms

Explanation:

Given :

charge `q=24" "`coulomb
time `t=12" "`seconds
Power `P=8" "`watts

Solution:

Let `i` current in Ampere

`i=q/t=24/12=2" "`Amperes

`P=i^2 *R`

`8=(2)^2*R`

`8=4*R`

`R=8/4`

`R=2" "`Ohms

God bless....I hope the explanation is useful.