JEE Main 2019 — Electromagnetic Induction Question with Solution
From: JEE Main 2019 (Online) 9th April Morning Slot
Question
The total number of turns and cross-section area
in a solenoid is fixed. However, its length L is varied
by adjusting the separation between windings. The
inductance of solenoid will be proportional to :
Choose an option
Show full solutionCorrect option: B
Correct answer
B1/L
Step-by-step explanation
= NBA = LI
N 0 nIR2 = LI
N and R constant
Self inductance (L)
N 0 nIR2 = LI
N and R constant
Self inductance (L)
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This is a previous-year question from JEE Main 2019, covering the Electromagnetic Induction 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.