Question

Calculate the resistance of an electric bulb which allows a 10a current when connected to a 220v power source?

Answer 1

the resistance of the electric bulb is 22 ohm

Answer 2

The resistance of the electric bulb will be -

$\bf 22\;\Omega .$

Explanation :

Given :

I = 10 A

V = 220 v

To find :

The resistance of an electric bulb.

Solution :

• What is Resistance ?

The property of an object to resist the flow of electric current through itself is called resistance.

We know the Ohms Law :

$\bigstar\;\boxed{\bf V = I R}$

So,

$\implies \sf 220 = 10 \times R\\ \\ \\ \implies \sf R = \dfrac{220}{10}\\ \\ \\ \implies \sf R = 22 \Omega$

Hence,

The resistance of the electric bulb will be 22 $\Omega$