Current Electricity An open resistor, when checked with an ohmmeter reads Zero Low but not zero High but within tolerance Infinite Zero Low but not zero High but within tolerance Infinite ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An instrument which detects electric current is known as Wattmeter Rheostat Galvanometer Voltmeter Wattmeter Rheostat Galvanometer Voltmeter ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Insulators have _______ temperature co-efficient of resistance. None of the listed here Negative Positive Zero None of the listed here Negative Positive Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The electrical energy required to heat a bucket of water to a certain temperature is 4 kWh. If the heat losses are 20 percent, the energy input is 5 kWh 3.2 kWh 2 kWh 6 kWh 5 kWh 3.2 kWh 2 kWh 6 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot wire of electric bulb's filament is higher than its cold resistance because the temperature co-efficient of filament is None of the listed here Positive Negative Zero None of the listed here Positive Negative Zero ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The resistance of a few meters of wire conductor in closed electrical circuit is Very high Low High Practically zero Very high Low High Practically zero ANSWER DOWNLOAD EXAMIANS APP
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