Current Electricity 1 Question 2
2. A current of 5 A passes through a copper conductor (resistivity ) of radius of cross-section 5 . Find the mobility of the charges, if their drift velocity is .
(2019 Main, 10 April I)
(a)
(b)
(c)
(d)
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Solution:
- Given,
Mobility of charges in a conductor is given by
and resistivity is given by
From Eqs. (i) and (ii), we get
Substituting the given values, we get