Define the term 'mobility' of charge carriers. Write its S.I. unit.
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Mobility of charge carriers `(mu)`, responsible for currents is defined as the magnitude of drift velocity of charge per unit electric field applied i.e., `mu= ("drift velocity")/("electric field") = v_(d)/E = v_(d)/(V//l) =v_(d)/(F//q)` S.I. unit of mobility `=m^(2) V^(-1) s^(-1)= ms^(-1)N^(-1)C `
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