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Resistivity of ideal conductor and ideal...

Resistivity of ideal conductor and ideal insulator are `rho_(1) and rho_(2)` respectively, then .....

A

`rho_(1) = 0, rho_(2) =0 `

B

`rho_(1) = 0 , rho_(2) = infty`

C

`rho_(1) = infty , rho_(2) = 0 `

D

`rho_(1) = infty, rho_(2) = infty`

Text Solution

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The correct Answer is:
B
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KUMAR PRAKASHAN-CURRENT ELECTRICITY-SECTION [D] MULTIPLE CHOICE QUESTIONS (MCQs) (MCQs FROM .DARPAN. BASED ON TEXTBOOK)
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  2. Resistance of a wire is ROmega. It is stretched uniformly till Its len...

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  3. Resistivity of ideal conductor and ideal insulator are rho(1) and rho...

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  4. For a conductor, the given Ogure shows the graph of V rarr I for diff...

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  5. For a conducting wire V rarr I graph is as shown in figure given belo...

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  6. Free electron number density in one wire is n, its area of cross-secti...

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  7. A wire has a non-uniform cross-section ai shown In figure. A steady cu...

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  8. Drift velocity of electrons is ....... .

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  9. The arc of cross-section of a metallic conductor is halved. The drift ...

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  10. Drift velocity of holes is ......

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  11. Suppose drift velocity over the entire cross section of a wire is V (...

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  12. Cross-sectional area of silicon slab at 300 K temperature having lengt...

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  13. Drift velocity of electrons is ....... .

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  14. Mobility of electric charge mean., ...... per unit electric field.

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  15. Resistance of conductor increases with increase in temperature because...

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  16. There are three red coloured hands on a carbon resistor. What is its r...

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  17. On a carbon resistor there are bands of colours of our national flag f...

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  18. Which of the following is a unit of mobility ?

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  19. Kirchhoff's first and second law are based ...... .

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  20. When a battery is connected across a parallel combination of two unequ...

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