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Which of the following is not a semicond...

Which of the following is not a semiconductor?

A

`Fe_2O_3`

B

`SiO_2`

C

GaAs

D

CuO

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UNITED BOOK HOUSE-MODEL PAPER SET-03-EXERCISE
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  2. Write the variation of magnetic moment of an electron revolving in Boh...

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  3. Which of the following is not a semiconductor?

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  4. The length of a dipole antenna for the carrier wave of frequency 3 xx ...

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  5. What is meant by the angle of dip 31^@N of Kolkata ?

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  6. State Lenz’s law.

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  7. An alternating current having peak value 141 A is used to heat,a metal...

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  8. What is dispersive power?

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  9. A house hold circuit has a fuse of 5 A rating. Calculate the maximum n...

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  10. Write the Wheatstone bridge principle.

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  11. Mention two differences Between magnetic lines of force and electric l...

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  12. A charged particle is found to move in a straight line through some r...

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  13. Mention two characteristics of electromagnetic waves.

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  14. The radioactive decay constant is 4.28 xx 10^-4 year^-1. What is the h...

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  15. Explain why sky waves ate suitable for long range communication.

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  16. What is surface charge density?

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  17. Two particles each carrying a charge of 2 xx 10^-8 C and connected by ...

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  18. The surface charge density of an infinite charged sheet is 10^-7 Cm^-2...

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  19. Show that the distribution of charge between two conductors connecting...

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  20. The current through the wire is 10 A as shown in figure below. Find ma...

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