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 5 kWh 2 kWh 3.2 kWh 6 kWh 5 kWh 2 kWh 3.2 kWh 6 kWh ANSWER DOWNLOAD EXAMIANS APP
Current Electricity The insulation on a current carrying conductor is provided To prevent leakage of current To prevent shock Both of the listed here None of above factors To prevent leakage of current To prevent shock Both of the listed here None of above factors ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A 3 Q resistor having 2 A current will dissipate the power of 6 watts 2 watts 4 watts 8 watts 6 watts 2 watts 4 watts 8 watts ANSWER DOWNLOAD EXAMIANS APP
Current Electricity When resistance element of a heater fuses and then we reconnect it after removing a portion of it, the power of the heater will Increase Decrease Remain constant None of these Increase Decrease Remain constant None of these ANSWER DOWNLOAD EXAMIANS APP
Current Electricity SI unit of power is Coulomb Watt-hour Henry Watt Coulomb Watt-hour Henry Watt 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 Heater will burn out Decreases Remains same Increases Heater will burn out Decreases Remains same Increases ANSWER DOWNLOAD EXAMIANS APP