An electric heater is a household appliance that operates based on the heating effect of electric current. When electric current flows through the heating element, it converts electrical energy into heat energy, providing warmth.
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If a 100-watt electric bulb burns for 10 hours, it consumes 1 kilowatt hour (kWh) of electricity. Since electricity is sold at the rate of Rs 5 per unit, the cost of running the bulb for 10 hours will be ...
A fuse wire is used in an electric circuit to prevent excess current from flowing in the circuit. By melting and breaking the circuit when the current exceeds a safe level, the fuse protects the electrical components and wiring from ...
When the length of a wire is doubled from L to 2L, the resistance of the wire will change due to the relationship between resistance and length in electrical conductors.
The unit of resistance is the ohm (symbol: Ω). Resistance is a measure of how much a material or device opposes the flow of electric current. It quantifies the degree to which a conductor resists the passage of electrons. The ...