Question

The potential difference between the terminal of an electric heater is 60V when it draws a current of 4A from the source . What current will the heater draw if the potential difference is increased to 120V? ??
Please tell this answer

Answer 1

V =60 V ...I =4 A
according to ohms law
R= V/I .....60/4= 15 OHMS
IF IT'S INC REAR ED TO 120 V...IT'S 120/15=
8A
THE CURRENT BECOMES 8A

Answer 2

R=V/I
R=60/4=15 OHM

V=IR
120=I× 15
I=120/15
I= 8 A