Answer :
To find the induced emf in a solenoid with given dimensions and number of turns, apply Faraday's Law of electromagnetic induction to calculate the emf based on the rate of change of magnetic flux.
From Ampere's Law, the magnetic field inside a solenoid is given by B = μ₀NI/L. To find the induced emf in the solenoid, we need to consider Faraday's Law of electromagnetic induction, which states that the induced emf (ε) is equal to the rate of change of magnetic flux through the coil.
This can be calculated using the formula ε = -N(dΦ/dt), where N is the number of turns in the solenoid and dΦ/dt is the rate of change of magnetic flux.