Current Electricity If the efficiency of a machine is to be high, what should be low? Losses kWh consumed True component of power Input power Losses kWh consumed True component of power Input power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Increases Remains unchanged None of the listed here Decreases Increases Remains unchanged None of the listed here Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Varistors are Non-linear resistors Insulators Carbon resistors Resistor with zero temperature co-efficient Non-linear resistors Insulators Carbon resistors Resistor with zero temperature co-efficient ANSWER DOWNLOAD EXAMIANS APP
Current Electricity At 0 K, germanium behaves as An insulator A ferromagnetic substance A conductor A superconductor An insulator A ferromagnetic substance A conductor A superconductor 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 40 W 20 W 60 W 10 W 40 W 20 W 60 W 10 W ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of A column of mercury A cube of carbon The unit length of wire A cube of copper A column of mercury A cube of carbon The unit length of wire A cube of copper ANSWER DOWNLOAD EXAMIANS APP
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