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प्रश्न
State the law that explains the heating effect of current with respect to the measurable properties in an electrical circuit.
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उत्तर
Joule's law of heating states that the heat dissipated across a resistor is directly proportional to:
- The square of the current flowing through it.
- The resistance of the conductor.
- Duration of the flow of current.
H = `"I"^2 "Rt"`
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संबंधित प्रश्न
Why are the conductors of electric heating devices, such as bread-toasters and electric irons, made of an alloy rather than a pure metal?
Write Joule's law of heating.
The current passing through an electric kettle has been doubled. The heat produced will become:
(a) half
(b) double
(c) four time
(d) one-fourth
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Find the odd one out and give its explanation.
Which of the following is correct?
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What are the uses of electromagnets?
Name the effect of the current responsible for the glow of the bulb in an electrical circuit.
A fuse is used in an electric circuit to stop high currents flowing through the circuit.
