Current Electricity SI unit of power is Watt-hour Watt Henry Coulomb Watt-hour Watt Henry Coulomb ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of The unit length of wire A cube of carbon A column of mercury A cube of copper The unit length of wire A cube of carbon A column of mercury A cube of copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 25 : 4 5 : 2 4 : 25 2 : 5 25 : 4 5 : 2 4 : 25 2 : 5 ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A copper wire has a resistance of 10 Ω. It is stretched by one-tenth of its original length. Then its resistance will be 11 Ω 10 Ω 9 Ω 12.1 Ω 11 Ω 10 Ω 9 Ω 12.1 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is 18 ohms, what is the resistance of the other? 48 Q 36 Q 64 Q 18 Q 48 Q 36 Q 64 Q 18 Q ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Copper Constantan Silver Carbon Copper Constantan Silver Carbon ANSWER DOWNLOAD EXAMIANS APP
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