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The electron density of intrinsic semico...

The electron density of intrinsic semiconductor at room temperature is `10^(16)m^(-3)` . When doped with a trivalent impurity , the electron density is decreased to `10^(14)m^(-3)` at the same temperature . The majority carrier density is

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C
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AAKASH INSTITUTE ENGLISH-Mock Test 39: PHYSICS-Example
  1. The incorrect feature of nuclear forces among following is

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  2. The t(0.5) of a radioactive element is related to its average life by ...

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  3. The unit of radioactivity decay rate is

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  4. The quark content of proton and neutron are respectively

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  5. If M,mn and mp are masses (in kg) of nucleus Xz^A, neutron and proton ...

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  6. A pure semiconductors

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  7. In a p-n junction diode, holes diffuse from p-region to n- region beca...

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  8. The total number of current careers in intrinsic semiconductor of dime...

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  9. In the voltage current (V-l) characteristics of junction diode (figure...

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  10. In the circuit below ,the breakdown voltage of zener diode is 10v. The...

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  11. Symbolic representation of photodiode is-

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  12. The electron density of intrinsic semiconductor at room temperature is...

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  13. The correct statement among the following is/are

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  14. In p-n junction, having depletion layer of thickness 2 ×10^(-6)m the p...

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  15. A N - type semiconductor is

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  16. In the following circuit, the current flowing through 1kOmega. resisto...

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  17. The current through 2 Omega resistor is(diodes are considered as ideal...

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  18. If ni, ne and nh represents the number of intrinsic charge carrier, nu...

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  19. The cut-in voltage of a germanium diode is approximately equal to

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  20. In a half wave rectifier, the current flows

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