Current Electricity Insulators have _______ temperature co-efficient of resistance. Positive Negative Zero None of the listed here Positive Negative Zero None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Carbon Copper Silver Constantan Carbon Copper Silver Constantan ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Ampere-hour is the unit of Power Strength of current Quantity of electricity Energy Power Strength of current Quantity of electricity Energy ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The SI unit of power is Watt Henry Watt-hour Coulomb Watt Henry Watt-hour Coulomb 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 9 Ω 10 Ω 12.1 Ω 11 Ω 9 Ω 10 Ω 12.1 Ω 11 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In the case of direct current Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude and direction of current changes with time Magnitude of current remains constant Magnitude of current changes with time Magnitude and direction of current remains constant Magnitude and direction of current changes with time Magnitude of current remains constant ANSWER DOWNLOAD EXAMIANS APP
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