Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 50 V 150 V 200 V 100 V 50 V 150 V 200 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A 40 W bulb is connected in series with a room heater. If now 40 W bulb is replaced by 100 W bulb, the heater output will Decreases Remains same Increases Heater will burn out Decreases Remains same Increases Heater will burn out 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. Semiconductors Thermistor Variable resistors Varistors Semiconductors Thermistor Variable resistors Varistors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric pressure is also called Energy Resistance Voltage Power Energy Resistance Voltage Power ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A closed switch has a resistance of Zero About 50 ohms About 500 ohms Infinity Zero About 50 ohms About 500 ohms Infinity ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An instrument which detects electric current is known as Galvanometer Voltmeter Wattmeter Rheostat Galvanometer Voltmeter Wattmeter Rheostat ANSWER DOWNLOAD EXAMIANS APP
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