The magnetic flux thropugh a loop varies according to the relation `phi= t^2 + 6t+C`, where 'C' is constant, `phi` is in milliwebe3r and 't' is in sedcond. What is the mognitude of induced e.m.f. in the loop at t = 2 seconds ?

The magnetic flux through a loop varries according to the relation ∅ = 8t^(2)+ 6t + 2, ∅ is in milliweber and t is in second. What is the magnitude of the induced emf in the loop at t = 2 seconds?

In Fig. 30-60, the magnetic flux through the loop increases according to the relation phi_(B) = 3.0t^(2) = 7.0t , where phi_(B) is in milliwebers and tis in seconds. (a) What is the magnitude of the emf induced in the loop when t = 1.5 s? (b) Is the direction of the current through R to the right or left?

The magnetic flux through a loop is varying according to relation phi=6t^(2)+7t+1 where phi is in milliweber and t is in second. What is the e.m.f. induced in the loop at t = 2 second ?

The magnetic flux passing perpendicular to the plane of the coil and directed into the paper is varying according to the relation phi = 3t^(2) + 2t + 3 , where phi is in milliweber and t is in second. Then the magnitude of emf induced in the loop when t = 2 second is-

The normal magnetic flux passing through a coil changes with time according to following equation phi = 10t^(2) + 5t + 1 where phi is in milliweber and t is in second. The value of induced e.m.f. produced in the coil at t = 5s will be –

In the given figure the magnetic flux through the loop increases according to the relation phi_(B)(t)=10t^(2)+20t , where phi_(B) is in milliwebers and t is in seconds. The magnitude of current throught R=2Omega resistor at t=5 s is _______ mA.

The magnetic flux passing prependicular to the plane of the coil directed into the paper is varying according to the relation phi=6t^(2)+8t+I0 , where phi is in weber and t in second. (a) What is the magnitude of emf induced in the loop when t=2sec ? (b) What is the magnitude and direction of current at t=2sec ?

The mangnetic flux passsing perpendicular to the plane of a coil and directed into the paper is given by phi = 5t^(2) + 6t+ 2 where phi is in milliwebers and t in seconds. (a) What is the magnitude of the induced emf set up in the loop at t=1s ? (b) What is the direction of current through the resistor R ?

The magnetic flux (phi) in a closed circuit of resistance 20 Omega varies with time (t) according to the equation phi = 7t^(2) - 4t where phi is in weber and t is in seconds. The magnitude of the induced current at t =0.25s is