If a current of $5 A$ passing through a circuit generates $400 W$ of power, what is the resistance of the circuit?

Question

1423 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-06-22T06:06:08

The resistance is $=16Omega$

The curent is $I=5A$

The power is $P=UI=400W$

Ohm's Law is $U=RI$

Therefore,

$P=UI=RI^2$

The resistance is

$R=P/I^2=400/5^2=16Omega$

If a current of 5 A5 A passing through a circuit generates 400 W400 W of power, what is the resistance of the circuit?