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Introduction

38.)Acapacito...

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38.)Acapacitorof capacitance C is charged with thehelp of a 200 V battery. It is then dischargedthrough a small coil of resistance wire embeddedin a thermally insulated block of specific heatcapacity 2.5 x 102 J/kg and mass 0.1 kg. If thetemperature of the block rises by 0.4 K, the valueof C is(1) 500 F(3) 50 F(2) 500 uF(4) 50 uF

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