Question:
The self-inductance of an air core solenoid is \( L \). If the number of turns in the solenoid is doubled, keeping all other factors constant, then its self-inductance will be
The self-inductance of an air core solenoid is \( L \). If the number of turns in the solenoid is doubled, keeping all other factors constant, then its self-inductance will be
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Inductance $\propto$ (number of turns)$^2$.
Updated On: Apr 21, 2026
- \(L \)
- \( \frac{L}{2} \)
- \(2L \)
- \(4L \)
- \(8L \)
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The Correct Option is D
Solution and Explanation
Concept:
\[
L \propto N^2
\]
Step 1: Doubling turns.
\[ L' = (2N)^2 = 4N^2 \Rightarrow 4L \]
Step 1: Doubling turns.
\[ L' = (2N)^2 = 4N^2 \Rightarrow 4L \]
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