Question

If a current of `3 A` passing through a circuit generates `9 W` of power, what is the resistance of the circuit?

Answer 1

`1Omega`

Explanation:

Given,
Power (p) = `9 W`
Current (I) = `3 A`
Resistance (R) = `?`
We know that,
`P = I^2 xx R`
`-> 9 = 3^2 xx R`
`-> 9 = 9 xx R`
`-> R = 9/9`
`:. R = 1 Omega`
So, the resistance of the circuit is `1 Omega` .