Question

The potential difference between the terminals of an electric heater is 90volts

when it draws a current of 5A from the source. What current will the heater

draw if the potential difference is increased to 180V?​

Answer 1

Answer:

Given :

Potential Difference of heater = 60v

current I=4A

Resistance =R?

By Ohm's law :

V=IR

R=V/R

=60/4=15 ohms

Now if potential is increased to 120 V

I=?

V=IXR

I=V/R

=120/15

=8 A

Hence current drawn by heater is 8

Explanation:

hope it help for a hint