JEE Main 2026 Physics question
Suppose a long solenoid of 100 cm length, radius 2 cm having 500 turns per unit length, carries a current A , where . A circular conducting loop (B) of radius 1 cm coaxially slided through the solenoid at a speed cm/s. The r.m.s. current through the loop when the coil B is inserted 10 cm inside the solenoid is A. The value of is .
[Resistance of the loop ]
Answer: 1
Solution
Emf Induced
ε = Aμ_0 n ω ω t
current induced
So \f$
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