Current Electricity Electrical current is due to the flow of Positive charges only Neutral particles only Both positive and negative charges Negative charges only Positive charges only Neutral particles only Both positive and negative charges Negative charges only 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 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 insulation on a current carrying conductor is provided Both of the listed here To prevent shock To prevent leakage of current None of above factors Both of the listed here To prevent shock To prevent leakage of current None of above factors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Are the materials having electrical conductivity much less than most of the metals but much greater than that of typical insulators. Thermistor Varistors Semiconductors Variable resistors Thermistor Varistors Semiconductors Variable resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Sparking occurs when a load is switched off because the circuit has high Inductance Impedance Capacitance Resistance Inductance Impedance Capacitance Resistance ANSWER DOWNLOAD EXAMIANS APP
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