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प्रश्न
How does the resistance of an alloy, vary with temperature?
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उत्तर
The resistance of an alloy remains nearly unaffected by the change in temperatue.
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संबंधित प्रश्न
When a 4 Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second is:
(a) 0.3
(b) 3
(c) 4
(d) 12
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Three resistors of 6.0 Ω, 2.0 Ω and 4.0 Ω are joined to an ammeter A and a cell of emf 6.0 V as shown in the following figure. Calculate :
- the effective resistance of the circuit.
- the reading of ammeter.
Answer the following question.
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Write an expression for the resistance of a conducting wire in terms of its length and area of cross-section.
State expression for Resistance connected in series.
