Question

when 60 v potential difference is applied between two terminals of an electric heater it draw a current of 4A from the source ? find the resistance of the electric heater

Answer 1

V = IR

V/I = R
60/4= R
R = 15 ohm.

Answer 2

Answer:

Resistance of heater is 15 ohm

Explanation:

Given,

The potential difference between the terminals of an electric heater is 60 V.

Current of 4 A is drawn from the source.

To find: Resistance

Solution:

According to Ohm's law, Potential difference is directly proportional to current.

i.e V  $\propto$  I

or, V = iR

here, V = 60 V and i = 4 A

Substituting the values,

R = V / i = 60 / 4 = 15 Ω

Therefore, Resistance of heater is 15 ohm.