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At room temperature the number of electr...

At room temperature the number of electrons and holes in an intrinsic semiconductor are equal (write Yes or No)

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In an intrinsic semiconductor electrons are the only charge carriers.

Knowledge Check

  • If n_(e ) and n_(h) are the number of electrons and number of holes respectively, in an intrinsic semiconductor, then

    A
    `n_(h) lt n_(e)`
    B
    `n_(h)= n_(e)`
    C
    `n_(h) gt n_(e)`
    D
    `n_(h) ne n_(e)`

  • Let n_h and n_e be the number of holes and conduction electrons in an istrinsic semiconductor. Then

    A
    `n_b=n_e`
    B
    `n_bltn_e`
    C
    `n_hgtn_e`
    D
    `n_hnen_e`

  • If the ratio of the concentration of electrons to that of holes in a semiconductor is 7//5 and the ratio of currents is 7//4 ,then what is the ratio of their drift velocities ?

    A
    `5/8`
    B
    `4/5`
    C
    `5/4`
    D
    `4/7`

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