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CURRENT ELECTRICILEVEL-IITwo resistances of 5 ohm and 10 ohm areconnected in series. If the P.D. across 5 ohmresistor is 10V, the heat developed in 2.1 secin the other resistor is :1) 84 calories 2) 420 calories3) 20 calories 4) 10 caloriesR=Poh of 50W and 100V can |
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