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The temperature dependence of resistance...

The temperature dependence of resistances of Cu and undoped Si in the temperature range 300 - 400 K, is best described by :

A

Linear decrease for Cu, linear decrease for Si

B

Linear increase for Cu, linear increase for Si.

C

Linear increase for Cu, exponential increase for Si.

D

Linear increase for Cu, exponential decrease for Si

Text Solution

Verified by Experts

The correct Answer is:
D
Linear increase for Cu, exponential decrease for Sl.
CU `rarr` Temperature depedence
Resistance increases with temperature
Si `rarr` Resistance decrease exponentially with temperature
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KUMAR PRAKASHAN-CURRENT ELECTRICITY-SECTION [D] MULTIPLE CHOICE QUESTIONS (MCQs) (MCQs ASKED IN COMPETITIVE EXAMS)
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  8. In the circuit shown, the current in the 1 Omega resistor is ......

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  9. The temperature dependence of resistances of Cu and undoped Si in the ...

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  10. Let R and S be two non-void relations on a set A. Which of the followi...

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  11. In the above circuit the current in each resistance is ......

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  14. In a potenliomcter experiment, it is found that no current passes thr...

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  15. On interchanging the resistance the balance point of a meter bridge s...

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  16. The current (i(1)) (in A ) flowing through 1 Omega resistor in the fo...

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  17. In a building there are 15 bulbs of 45 W, 15 bulbs of 100 W, 15 bulbs ...

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  18. The balancing length for a cell is 560 cm in a potentiometer experimen...

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  19. There is a potentiometer wire of length 1200 cm and a 60 mA curreut i...

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  20. Four resistors of resistance 15 Omega, 12 Omega, 4 Omega and 10 Omega ...

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