Current Electricity Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the current. Resistor Inductor Reactor Capacitor Resistor Inductor Reactor Capacitor ANSWER DOWNLOAD EXAMIANS APP
Current Electricity International ohm is defined in terms of the resistance of A cube of carbon A cube of copper The unit length of wire A column of mercury A cube of carbon A cube of copper The unit length of wire A column of mercury ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The hot resistance of the bulb's filament is higher than its cold resistance because the temperature coefficient of the filament is Positive Zero Negative About 2 ohms per degree Positive Zero Negative About 2 ohms per degree ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A light bulb draws 300 mA when the voltage across it is 240 V. The resistance of the light bulb is 800 Ω 400 Ω 600 Ω 1000 Ω 800 Ω 400 Ω 600 Ω 1000 Ω ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The specific resistance of a metallic conductor ______ with rise in temperature. Decreases Increases None of the listed here Remains unchanged Decreases Increases None of the listed here Remains unchanged 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 2 kWh 6 kWh 5 kWh 3.2 kWh 2 kWh 6 kWh 5 kWh 3.2 kWh ANSWER DOWNLOAD EXAMIANS APP
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