Current Electricity Which of the following material has nearly zero temperature co-efficient of resistance? Manganin Carbon Porcelain Copper Manganin Carbon Porcelain Copper ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. None of the listed here Decreases Increases Remains unchanged None of the listed here Decreases Increases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Current Electricity SI unit of power is Watt-hour Coulomb Henry Watt Watt-hour Coulomb Henry Watt ANSWER DOWNLOAD EXAMIANS APP
Current Electricity With three resistances connected in parallel, if each dissipates 20 W the total power supplied by the voltage source equals 10 W 20 W 60 W 40 W 10 W 20 W 60 W 40 W ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If an electric current is passed through a nerve, the man Becomes insensitive to pain Is excited Begins to laugh Begins to weep Becomes insensitive to pain Is excited Begins to laugh Begins to weep ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? kWh consumed Input power True component of power Losses kWh consumed Input power True component of power Losses ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS