NEET Physics Self & Mutual Induction MCQ Question
Two long co-axial solenoids S1 and S2 are given, with S1 having N1 turns and S2 having N2 turns. If the length of each solenoid is l and a current I2 flows in solenoid S2, which expression represents the magnetic flux Φ1 linked with solenoid S1?
N1 * μ0 * n2 * I2 * π * r1^2
N2 * μ0 * n1 * I2 * π * r2^2
N1 * μ0 * n1 * I2 * π * r1^2
N2 * μ0 * n2 * I2 * π * r2^2
Correct Answer
Detailed Explanation
The magnetic flux Φ1 linked with solenoid S1 due to the current I2 in S2 is given by the mutual inductance expression involving N1, μ0, n2 (turns per unit length of S2), and the cross-sectional area of S1, π * r1^2, where r1 is the radius of S1.
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