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Write the mathematical relation between mobility and drift velocity of charge carriers in a coductor. Name the mobile charge carriers responsible for conduction of electric current in (a) an electrolyte (b) an ionised gas.

Text Solution

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Mobility, `mu = ("drift velocity")/("electric field") = v_(d)/E`
(a) The charge carriers in an electrolyte are positive and negative ions. (b) The charge carriers in an ionised gas are electrons and positively charged ions.
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Knowledge Check

  • Mobility of charge carrier in conductor is

    A
    directly proportional to E, Inversely proportional to `v_d`
    B
    inversely proportional to E, directly proportional to `v_d`
    C
    directly proportional to both `v_d` and E
    D
    Inversely proportional to both `v-d` and E

  • The dimensions of mobility of charge carriers are

    A
    `[M^(-2)T^(2)A]`
    B
    `[M^(-1)T^(2)A]`
    C
    `M^(-2)T^(3)A]`
    D
    `[M^(-1)T^(3)A]`

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