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How does electrical conductivity of semi...

How does electrical conductivity of semiconductors vary with temperature?

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It increases with increase in temperature.
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The electrical conductivity of semiconductor is

How does the electrical conductivity of super- conductors vary with temperature ?

why does the electrical conductivity of semiconductors increse with rise in temperature?

why does the electrical conductivity of semiconductors increase with rise in temperature?

Statement I : Electrical conductivity of semiconductors increases with rise in temperature. Statement II : There is a small energy gap between conduction band and valence band.

The electrical resistivity of a semiconductor :

How does the conductivity of a semiconductor change if its temperature is raised ?

Assertion (A) : The electrical conductivity of a semiconductor increases with increase in temperature. Reason (R ) : With increase in temperature, large number of electrons from the valence band can jump to the conduction band.

when the electrical conductivity of a semiconductor is due to the breaking of its covalent bonds, then the semiconductor is said to be

ICSE-ELECTROCHEMISTRY-EXERCISE (PART-II Descriptive Questions)
  1. Write mathematical expression for Kohlrausch law.

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  2. Write Debye-Huckel-Onsager equation. What do different symbols signif...

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  3. How does electrical conductivity of semiconductors vary with temperat...

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  4. During electrolysis :

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  5. State Faraday's first law of electrolysis.

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  6. State Faraday's second law of electrolysis. How is the law helpful in ...

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  7. What is meant by electrochemical equivalent of a substance?

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  8. What is meant by Faraday's constant?

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  9. Which allotrope of carbon is used for making electrodes?

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  10. Name the electrolyte (complex) used in electroplating objects by silve...

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  11. How much charge is required for the reduction of 1 mole of Cu^(2+) to...

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  12. Following two reactions can occur at cathode in the electrolysis of a...

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  13. Which reaction takes place preferentially and why?

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  14. Electrolysis of KBr (aq) gives br, at anode but of KF (aq) does not g...

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  15. Define the terms: Specific conductance.

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  16. Define the terms: Equivalent conductance.

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  17. What is a primary cell? Give an example.

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  18. What is a secondary cell ? Name one such cell.

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  19. When a lead storage battery is discharged:

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  20. What is the underlying principle that a lead storage battery can be r...

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