Question

Calculate the resistance of a lamp that has a potential difference of 3 V across it and a
current of 1 A passing through it.

Answer 1

Answer:

3 ohms

Explanation:

Given:

Voltage = 3 V

Current = 1 A

Resistance = ?

We know that by Ohm's law,

$\mathcal{V = I R}$

$\large \mathcal{ R \: = \frac{V }{ I }}$

=> R = 3/1

Therefore, The resistance is 3 Ohm