A resistor of resistance 5.6 Ω is connected across a battery of 3.0 V by means of a wire of negligible resistance . A current of 0.5 A passes through the resistor. Calculate
(a) power dissipated in the resistance
(b) total power produced by the battery
(c) give the reason of difference between these two quantities
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Answer:
a. power is I square R 1.4watts
b. 1.4 watts
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