Question

04 The potential difference between the terminals of a of an electric heater is 75 V when it draws a
current of 5 A from the source. What current will the heater draw, if the potential difference is
increased to 150 V? ​

Answer 1

The heater will draw 10 A of current.

Answer 2

Explanation:

When V = 75

I = 5A

By using ohm's law:

V = IR

R = V/I

R = 75/5

R = 15 ohm

Now,

When V = 150

I = ?

R = 15 ohm

By using ohm's law:

V = IR

I = V/R

I = 150/15

I = 10A