# How many ohms of resistance must be present in a circuit that has has 240 volts and a current of 15 amps?

May 1, 2017

We just have to use ohm's law:-

$V = I \cdot R$

where, $V$ is the net potential difference in the circuit, $I$ is the current in the circuit and $R$ is the net resistance of the circuit.

In this case, $V = 240$ volts, $I = 15$ amperes.

$\therefore$ $240 = 15 \cdot R$
$\implies R = \frac{240}{15} = 16$ ohms