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 Sparking occurs when a load is switched off because the circuit has high Impedance Capacitance Inductance Resistance Impedance Capacitance Inductance Resistance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 200 V 50 V 150 V 100 V 200 V 50 V 150 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A wire having very high value of conductance is said to be Very good conductor Moderately good conductor None of the listed here Insulator Very good conductor Moderately good conductor None of the listed here Insulator ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current is a Scalar quantity Number only Vector quantity Sometimes scalar and sometimes vector Scalar quantity Number only Vector quantity Sometimes scalar and sometimes vector ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An open resistor, when checked with an ohmmeter reads Low but not zero Infinite Zero High but within tolerance Low but not zero Infinite Zero High but within tolerance ANSWER DOWNLOAD EXAMIANS APP