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Drift speed of electron inside the metallic conductor is `v_(A) = eE^(y) m^(z) tau` (here, `e =` electronic charge, `E =` electric field, `m =` mass of electron and `tau =` time relaxation). Find the value of `y`.A. `(3)/(2) `B. `0`C. `(1)/(2)`D. `1` |
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Answer» Correct Answer - d The unit of LHS `= m^(1)s^(-1)` The unit of RHS `="coulomb"(("newton")/("colomb"))^(1) ("kilogram")^(2)("second")` But The unit of LHS= unit of RHS Colomb does not come in RHS `(("colomb"^(1))/("colomb")^(2)) =` unitless `rArr y = 1` |
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