Physics · 2019
JEE Main · 9 April 2019, Shift 1 · Q21
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…
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 :
Official answer
(4)
$\displaystyle 1$/L
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JEE Main 2019 Physics question, with the answer from NTA’s final answer key. Where our answers come from.