Current Electricity When current flows through heater coil it glows but supply wiring does not glow because Current through supply line flows at slower speed Supply wires are made of superior material Resistance of heater coil is more than the supply wires Supply wiring is covered with insulation layer Current through supply line flows at slower speed Supply wires are made of superior material Resistance of heater coil is more than the supply wires Supply wiring is covered with insulation layer ANSWER DOWNLOAD EXAMIANS APP
Current Electricity One Newton meter is same as Five joules One joule second One watt One joule Five joules One joule second One watt One joule ANSWER DOWNLOAD EXAMIANS APP
Current Electricity A 3 Q resistor having 2 A current will dissipate the power of 8 watts 6 watts 4 watts 2 watts 8 watts 6 watts 4 watts 2 watts ANSWER DOWNLOAD EXAMIANS APP
Current Electricity For testing appliances, the wattage of test lamp should be Very low Any value High Low Very low Any value High Low 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 With rise in temperature the resistance of pure metals Decreases First increases and then decreases Increases Remains constant Decreases First increases and then decreases Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
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