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The magnetic flux (phi) linked with a co...

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

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