Define one watt.
Why do the wires connecting an electric heater to the mains not glow while its heating element does ?
If resistors are connected in parallel, the voltage across each remains the same.
The potential difference across a conductor is doubled, the rate of generation of heat will
An electric refrigerator rated $400\, W$ operates $8$ hour per day. What is the cost of the energy to operate it for $30$ days at ₹ $3.00$ per $k W h ?$