Question

The magnetic flux linked with a coil at any instant ‘t ’ is given by φ = t2 −10t + 50 Weber. The induced emfin coil at t  2 second is A) 50 V B) 34 V C) 6 V D) 2 V

Answer 1

Answer:

induced emf = - dphi/dt

E= -(2t-10)

put the value of t

we get E= 6V