Current Electricity What voltage drop will be there across a 1 kW electric heater whose resistance when hot is 40 Ω? 200 V 150 V 50 V 100 V 200 V 150 V 50 V 100 V ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Electric current passing through the circuit produces Chemical effect Thermal effect Magnetic effect Luminous effect Chemical effect Thermal effect Magnetic effect Luminous effect ANSWER DOWNLOAD EXAMIANS APP
Current Electricity An electrical lamp coonsumes 100 W of power. If the supply voltage is 220 V the energy consumed in 30 minutes is 5 kWh 0.05 kWh 5 kWh 0.005 kWh 5 kWh 0.05 kWh 5 kWh 0.005 kWh 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 3.2 kWh 6 kWh 5 kWh 2 kWh 3.2 kWh 6 kWh 5 kWh 2 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity SI unit of power is Watt Coulomb Watt-hour Henry Watt Coulomb Watt-hour Henry ANSWER DOWNLOAD EXAMIANS APP
Current Electricity Which method can be used for absolute measurement of resistances? Lorentz method Releigh method Wheastone bridge method Ohm's law method Lorentz method Releigh method Wheastone bridge method Ohm's law method ANSWER DOWNLOAD EXAMIANS APP
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