Question

Class X Sciences
[papers from previous years]

Calculate the resistance of an electric bulb which allows a 10
A current when connected to a 220 V power source.

Answer 1

voltage = 220V
current = 10A
Resistance = V/I = 220 / 10 = 22Ω

Answer 2

I=10 A

V=220 V

R=?

Wkt,

R=V/I

= 220/10

= 22 ohm