A 12\(\Omega\) resistor dissipates 8kJ of heat in 20s. Calculate the current through the resistor
a
5.8A
b
6.9A
c
30.0A
d
33.3A
Explanation
Correct Option
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Repq
4 years ago
from the question we have
R=120ohms
t=20sec
Q=8KJ converting to Joules we have 8000j
applying the formular
Q=I²Rt
8000=I²×120×20
I²=8000/2400
I²=3.33
I=Square root of 3.33
I=1.82A
