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Question
A 4µF condenser is charged to 400 volts and then plates are joined through a resistance of 1 kΩ The heat produced in the resistance is:
Options
l.28J
0.64J
0.32J
0.16J
MCQ
Solution
0.32J
Explanation:
Heat generated = energy stored in the condenser
= `1/2` CV2 = `1/2 xx 4 xx 10^-6 (400)^2`
= 0.32J.
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