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metals are good conductors of heat as co...

metals are good conductors of heat as compared to the insulators because

A

they contain free electrons

B

tehir atoms are realtively far apart

C

their atoms collide frequently

D

they have reflecting surfaces

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TARGET PUBLICATION-SEMICONDUCTORS-EXERCISE
  1. OUT OF THE FOLL.semiconductors, which of them is an example of compoun...

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  2. when the temperature of a semiconductor is increased , its electrical ...

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  3. metals are good conductors of heat as compared to the insulators becau...

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  4. for a given solid,closely spaced energy levels of all electros in a pa...

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  5. in insulators,

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  6. the energy band gap is maximum in

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  7. the band gap in germanium and silicon in eV are

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  8. the main distinction between conductors,semiconduct ors and insulators...

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  9. if the temperature of a semi condutror is incressed, then the forbidde...

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  10. the most commonly used semi caonductors are

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  11. a pure semiconductor

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  12. thr ratio of no.of holes and no. of conduction electrons in an intrin...

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  13. at absolute zero temerature , a crystal of pure germanium

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  14. which of the foll. Is NOT a 'donor' impurity?

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  15. Pure silicon should be doped with which of the foll. Impurity atoms to...

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  16. a n-type semiconductor is formed

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  17. Regarding p-type and n-type semiconductors,which of the foll..statemen...

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  18. a semiconductor is damaged by a strong current ,because of

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  19. bond in n and p type semiconductor is

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  20. in germanium crystal.a hole is provided by aimpurity.

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