27. Find the power dissipated when:
(a) a current of 5 mA flows through a resistance of 20 k
(b) a voltage of 400 V is applied across a 120 k resistor
(c) a voltage applied to a resistor is 10 kV and the current flow is 4 mA.
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a voltage of 400 v is applied across a 120 k resistor
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Explanation:
a voltage of 400 v is applied across a 120 k resistor
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