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प्रश्न
State the factors on which the electrical resistance of a wire depends.
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उत्तर
The electric resistance of the wire depends on the following factors :
(i)The length of the wire.
(ii)The area of cross-section of the wire.
(iii)The temperature of the wire.
(iv)The material of the wire.
APPEARS IN
संबंधित प्रश्न
(a) Complete the circuit given in Fig. by inserting between the terminals A and C. an ammeter.
(b) In the diagram, mark the polarity at the terminals of ammeter and indicate clearly the direction of flow of current in the circuit when the circuit is complete.
(c) Name and state the purpose of Rh in the circuit.
What do you understand by the term resistance?
What do you mean by the potential difference? Write its SI unit.
A wire of resistance 1 Ω is stretched to double its length. What will happen to the resistance of the stretched wire?
