Home
Class 12
PHYSICS
An extrinsic semiconductor has the conce...

An extrinsic semiconductor has the concentration of holes as charge carriers `5 xx10^(20) "m"^(-3)` . The electron concentration is negligible as compared to hole concentration . If mobility of holes is 0.05 `"m"^(2)."V"^(-1).s^(-1)` then find the conductivity (in mho. `"m"^(-1)`) of the semiconductor ?

Text Solution

Verified by Experts

The correct Answer is:
4
Promotional Banner

Topper's Solved these Questions

  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIVE with solutions (WBCHSE)|21 Videos
  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIVE with solutions (WBJEE)|8 Videos
  • SEMICONDUCTORS AND ELECTRONICS

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER (Multiple correct answers type)|7 Videos
  • REFRACTION OF LIGHT

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|11 Videos

Similar Questions

Explore conceptually related problems

For an n-type doping in a pure semiconductor the concentration of charge carrier electrons increases 5 times. Find hole concentration as percentage of the electron concentration.

The rate constant of the reaction ArarrB " is " 0.6xx10^(-3)"mol.L"^(-1).s^(-1) . If the concentration of A is 5(M) , then concentration of B after 20 min is -

A semiconductor has the eIectron concentration 0.45 xx 10^(12) "m"^(-3) and the hoIe concentration 5 xx 10^(20)m^(-3) . CaIcuIate the conductivity of the mate- riaI of this semiconductor. Given, Electron mobiIity =0.135 "m"^(2). V^(-1).s^(-1) and hoIe mobiIity =0.048 "m"^(2). V^(-1). s^(-1) .

A semiconductor has the electron concentration of 8 xx 10^(13) "cm"^(-3) and hole concentration 4xx10^(12) "cm"^(-3) . Is this semiconductor n-type or p-type ? Also calculate resistivity of its material. Given : Electron mobility =24000 "cm"^(2). "V"^(-1).s^(-1). and hole mobility =200 "cm"^(2)."V"^(-1). s^(-1)

A semiconductor has the electron concentration of 4xx10^(12) "cm" ^(-3) and the hole concentration of 7xx10^(13)"cm"^(-3) . Is this semiconductor n-type or p-type ? Also calculate conductivity of its material. Given : Electron mobility =22000 "cm"^(2)."V"^(-1).s^(-1) and hole mobility =150 "cm"^(2)."V"^(-1).s^(-1)

The rate constant for an isomerisation reaction, ArarrB " is " 4.5xx10^(-3)"min"^(-1). If the initial concentration of A is 1(M), calculate the rate of the reaction after 1 h.

The rate constant of the reaction A to B is 0.6 x 10^-3 moL^-1s^-1 If the concentration of A is 5 M then concentration of B after 20 minutes is

Consider a certain reaction Ararr products with k=2.0xx10^(-2)s^(-1) .Calculate the concentration of a A remaining after 100s if the initial concentration of A is 1.0"mol .L"^(-1) .

The rate constant of a first order reaction is 0.0051"min"^(-1) . If the initial concentration of the reactant is 0.2(M) , find the concentration of the reactant after 2h.

A semiconductor har equaI eIectron and hoIe concentrations of 6 xx 10^(8)"m"^(-3) . On doping with a certain impurity,the eIectron concentration of the semiconductor increases to 8 xx 10^(12)"m"^(-3) . (i) What type of semiconductor is obtained on doping? (ii) CaIcuIate the new hoIe concentration of the semiconductor.