The potential difference between the terminals of electric heater is 60V, when
it draws a current of 4A from the source. The resistance of electric heater coil
is
A. 15Ω
B. 240Ω
C. 24Ω
D. 64Ω
Answers
Answered by
3
Answer:
V=60VI=4A
R=
I
V
=
4
60
=15Ω
When potential difference is increased to 120V
I=
R
V
=
15
120
=8A
The current through the heater becomes 8A
Answered by
5
Answer:
A) 15 ohms
Explanation:
Resistance, R=V/I=60/4=15 ohms
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