JEE Main 2019 — Current Electricity Question with Solution
From: JEE Main 2019 (Online) 10th April Morning Slot
Question
A current of 5 A passes through a copper
conductor (resistivity = 1.7 × 10–8 m) of radius
of cross-section 5 mm. Find the mobility of the
charges if their drift velocity is 1.1 × 10–3 m/s.
Choose an option
Show full solutionCorrect option: B
Correct answer
B1.0 m2/Vs
Step-by-step explanation
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This is a previous-year question from JEE Main 2019, covering the Current Electricity chapter of Physics. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.