The magnetic flux linked with a coil (in Wb) is given by the equation ϕ=5t^2+3t+16. The magnitude of induced emf in the coil at the fourth second will…

Question

The magnetic flux linked with a coil (in Wb) is given by the equation ϕ=5t^2+3t+16. The magnitude of induced emf in the coil at the fourth second will be:

MARKS Content Team · Accepted Answer

Correct answer: (B) 43 V. Given magnetic flux in terms of time, ϕ=5t^2+3t+60, and we know that from Faraday's law of electromagnetic induction, rate of change of flux is directly related to induced EMF of the coil, ⇒|ε|=(dϕ)/dt=10t+3 At t=4 s, |ε|=40+3=43 V

The magnetic flux linked with a coil (in $Wb$ ) is given by the equation $ϕ = 5 t^{2} + 3 t + 16$ . The magnitude of induced emf in the coil at the fourth second will be:

Solution

Relevant Questions

The magnetic flux linked with a coil (in Wb) is given by the equation ϕ=5t2+3t+16. The magnitude of induced emf in the coil at the fourth second will be:

Solution

Relevant Questions

The magnetic flux linked with a coil (in $Wb$ ) is given by the equation $ϕ = 5 t^{2} + 3 t + 16$ . The magnitude of induced emf in the coil at the fourth second will be: