Current Electricity The substances which have a large number of free electrons and offer a low resistance are called Conductors Inductors Semi-conductors Insulators Conductors Inductors Semi-conductors Insulators 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? 150 V 200 V 100 V 50 V 150 V 200 V 100 V 50 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity It becomes more difficult to remove Second electron from the orbit Third electron from the orbit First electron from the orbit Any electron from the orbit Second electron from the orbit Third electron from the orbit First electron from the orbit Any electron from the orbit ANSWER DOWNLOAD EXAMIANS APP
Current Electricity In which of the following substances the resistance decreases with increase in temperature? Carbon Constantan Copper Silver Carbon Constantan Copper Silver ANSWER DOWNLOAD EXAMIANS APP
Current Electricity All good conductors have high Conductance Thermal conductivity Resistance Reluctance Conductance Thermal conductivity Resistance Reluctance ANSWER DOWNLOAD EXAMIANS APP
Current Electricity All of the following are equivalent to watt except (Amperes) ohm Joules/sec. Amperes × volts Amperes/volt (Amperes) ohm Joules/sec. Amperes × volts Amperes/volt ANSWER DOWNLOAD EXAMIANS APP
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