Question

the potential difference between the terminals of an electric heater is 120 volt when it draws a current of 8 ampere from the source what current will the heater draw the potential difference is increased to 240 volt

pls help​

Answer 1

Answer:

Data,

P.D.=120v

current=8A

according to ohm's law

I=V/R

R=V/I

=120/8

=15ohm

P.D.=240V

R=15ohm

according to ohm's law

I=V/R

I=240/15

I=16A