Current Electricity If the efficiency of a machine is to be high, what should be low? Losses True component of power Input power kWh consumed Losses True component of power Input power kWh consumed ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Nichrome wire is an alloy of Nickel and chromium Lead and zinc Copper and silver Chromium and vanadium Nickel and chromium Lead and zinc Copper and silver Chromium and vanadium ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Remains unchanged None of the listed here Increases Decreases Remains unchanged None of the listed here Increases Decreases ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In a circuit a 33 Q resistor carries a current of 2 A. The voltage across the resistor is 132 V 66 V 80 V 33 V 132 V 66 V 80 V 33 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current. Resistor Capacitor Reactor Inductor Resistor Capacitor Reactor Inductor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity With rise in temperature the resistance of pure metals Increases Remains constant Decreases First increases and then decreases Increases Remains constant Decreases First increases and then decreases ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS