Current Electricity The resistance of a conductor varies inversely as Length Are of cross-section Temperature Resistivity Length Are of cross-section Temperature Resistivity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A rheostat differs from potentiometer in the respect that it Has lower wattage rating Has higher wattage rating Has large number of turns Offers large number of tapping Has lower wattage rating Has higher wattage rating Has large number of turns Offers large number of tapping ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current passing through the circuit produces Thermal effect Luminous effect Chemical effect Magnetic effect Thermal effect Luminous effect Chemical effect Magnetic effect ANSWER DOWNLOAD EXAMIANS APP
Current Electricity E. M. F. In a circuit Decrease circuit resistance None of the listed here Maintains potential difference Increases circuit resistance Decrease circuit resistance None of the listed here Maintains potential difference Increases circuit resistance 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 6 kWh 3.2 kWh 5 kWh 2 kWh 6 kWh 3.2 kWh 5 kWh 2 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A thermistor has Zero temperature coefficient Negative temperature coefficient Positive temperature coefficient Variable temperature coefficient Zero temperature coefficient Negative temperature coefficient Positive temperature coefficient Variable temperature coefficient ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS