Current Electricity The substances which have a large number of free electrons and offer a low resistance are called Semi-conductors Insulators Inductors Conductors Semi-conductors Insulators Inductors Conductors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric pressure is also called Resistance Power Energy Voltage Resistance Power Energy Voltage 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? 50 V 200 V 150 V 100 V 50 V 200 V 150 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Varistors are Carbon resistors Resistor with zero temperature co-efficient Insulators Non-linear resistors Carbon resistors Resistor with zero temperature co-efficient Insulators Non-linear resistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity If the efficiency of a machine is to be high, what should be low? Losses True component of power Input power kWh consumed Losses True component of power Input power kWh consumed ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The weight of an aluminium conductor as compared to a copper conductor of identical cross-section, for the same electrical resistance, is 1 0.5 1.5 0.6 1 0.5 1.5 0.6 ANSWER DOWNLOAD EXAMIANS APP
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