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The specific resistance for the insulato...

The specific resistance for the insulators is in the range of _________

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`10^(8-)10^(14)Omega m`
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FULL MARKS-CURRENT ELECTRICITY-Additional Questions Solved (Fill in the blanks)
  1. The reciprocal of electrical resistivity is called ……………….. .

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  2. With increase in temperature the resistivity of metals …………………….. .

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  3. The specific resistance for the insulators is in the range of

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  4. The resistivity of semiconductors is of the order of ………………… .

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  5. The materials which conduct electricity at zero resistance are called ...

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  6. Conductors turn into superconductors at ……………………. .

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  7. The resistance of superconductors is …………………….. .

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  8. The phenomenon of superconductivity was discovered by ………………………. .

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  9. Mercury becomes a superconductor at …………………. .

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  10. With increase of temperature, resistance of conductors ……………………….. .

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  11. In insulators and semiconductors, as temperature increases, resistance...

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  12. A material with a negative temperature coefficient is called a …………………...

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  13. the temperature co-efficient of resistance for alloys is

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  14. The electric current in an external circuit flows from the ………………….. .

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  15. In the electrolytic cell, current flows from …………………. .

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  16. A freshly prepared cell has ………………… internal resistance.

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  17. State the sign convention for applying Kirchhoff's first rule.

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  18. The current law states that the algebraic sum of the currents meeting ...

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  19. Current law is a consequence of conservation of …………………….. .

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  20. Sate Kirchhoff's voltage rule.

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