STANDARDPhysics-Electromagnetic Induction
STANDARD Physics Mutual Inductance MCQ Question
Type: MCQ-numerical-Medium-Class 12
A 2 m long solenoid with diameter 2 cm and 2000 turns has a secondary coil of 1000 turns wound closely near its midpoint. The mutual inductance between the two coils is
A
2.4 × 10⁻⁴ H
B
3.9 × 10⁻⁴ H
C
1.28 × 10⁻³ H
D
3.14 × 10⁻³ H
Correct Answer
Option B
Detailed Explanation
Using the formula for mutual inductance, M = (μ₀N₁N₂A)/l, and substituting the given values, we find M = 3.9 × 10⁻⁴ H. The calculations involve determining the area and using the number of turns and length of the solenoid.
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