The magnetic flux `(phi)` linked with the coil depends on time `t` as `phi=at^(n)`, where `a` and `n` are constants. The emf induced in the coil is `e`

The magnetic flux (phi) linked with a coil depends on time t as phi=at^(n) , where a and n are constants. The emf induced in coil is e . (i) If 0ltnltI,e=0 (ii) If 0ltnltI,een0 and |e| decreases with time (iii) If ngtI,e is constant (iv) If nltI,|e| increases with time

The magnetic flux (phi) linked with a coil varies with time (t) as phi=at^(n) , where a and n are constants. The induced emf in the coil is e. Which of the following are correct?

The magnetic flux phi linked with a conducting coil depends on time as phi = 4t^(n) + 6 , where n is positive constant. The induced emf in the coil is e

The magnetic flux phi linked with a conducting coil depends on time as phi = 4t^(n) + 6 , where n is positive constant. The induced emf in the coil is e

The magnetic flux linked with a coil varies with time t as phi=at^(2)+bt+c , where a, b and c are constants. The emf induced in the coil will be zero at a time of

The magnetic flux linked with a coil satisfies the relation phi=4t^(2)+6t+9 Wb where t is the time in second. The e.m.f. induced in the coil at t =2 second is

The magnetic flux (phi) linked with a coil is related to the area (A) of the coil as :