How much power is produced if a voltage of $4 V$ is applied to a circuit with a resistance of $4 Omega$ ?

Question

1565 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-03-06T07:21:51

THe power is $=4W$

The voltage is $U=4V$

The resistance is $R=4Omega$

The power is

$P=UI$

and Ohm's Law is

$U=RI$

$I=U/R$

Therefore,

$P=UI=U*U/R=U^2/r=4^2/4=4W$

How much power is produced if a voltage of 4 V4 V is applied to a circuit with a resistance of 4 Omega4 Omega?