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When the temperature of a metallic condu...

When the temperature of a metallic conductor is increased, its resistance

A

increaaes

B

decreases

C

remains the same with rise

D

first increases then decreases

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The correct Answer is:
A
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MCGROW HILL PUBLICATION-ELECTRIC CURRENT -HIGHER ORDER THINKING QUESTIONS
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  2. With decreae in density of the material, the resistance of the conduct...

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  3. With decrease in temperature, resistivity of a conductor

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  4. If length of a metallic wire becomes n times, its resistance becomes

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  5. If radius of a metallic wire becomes n times, its resistance becomes

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  6. If area of cross-section of a metalic wire becomes n times, its resist...

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  7. What happens to its resistivity when some impurity is added in a condu...

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  8. If a wire of resistacne R is fold n times so that its length becomes (...

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  9. A conductor behaves as a superconductor

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  10. A rectangular conducting cube (resistivity rho ) has dimensions l xx b...

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  11. If equivalent resistances of R (1) and R (2) in series and parallel be...

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  12. If an equilateral triangle is made of a uniform wire is resistance R, ...

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  13. A resistor of 25 cm length and 4 ohm is stretched to a uniform wire of...

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  14. A wire of resistance 1 Omega is stretched so as to change its diameter...

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  15. The V-I graph for a good conductor makes angle 42 ^(@) with V-axis. He...

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  16. If a variable resistance is connected to a cell of constant e.m.f., th...

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  17. When the switch S is closed in the given circuit, the current passed t...

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  18. You are given three equal resistors. How many resistances can be obtai...

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  19. A 8 Omega resistance wire is bent through 180^(@) at its mid point an...

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  20. The equivalent resistance of network of three 4 Omega resistors can no...

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