# How much power is produced if a voltage of 7 V is applied to a circuit with a resistance of 400 Omega?

Jan 6, 2016

Power$= 0.1225$ Watt

#### Explanation:

Data:-
Power=P=??
Voltage$= V = 7 V$
Resistance$= R = 400 \Omega$
Sol:-
We know that:-
$P = {V}^{2} / R$
$\implies P = {7}^{2} / 400 = \frac{49}{400} = 0.1225$ Watt

$\implies P = 0.1225$ Watt