The magnetic flux (f) linked with a coil depends on time t as φ = at n , where a is a…
Physics · JEE Advanced · NTA Exams — Electromagnetic Induction and Alternating Currents
The magnetic flux (f) linked with a coil depends on time t as φ = atn, where a is a constant. The induced e.m.f. in the coil is e:
- lf 0 < n < 1, e = 0
- If 0 < n < 1, e \(\neq\)0 and |e| decreases with time
- If n = 1, e is constant
- If n > 1, |e| increases with time.
Answer
(B) If 0 < n < 1, e 0 and |e| decreases with time, (C) If n = 1, e is constant, (D) If n > 1, |e| increases with time.
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