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lokesh Grade: 6
        

When the current changes from +2 A to – 2A in 0.05 second, and e.m.f. of 8 V is induced in a coil. The coefficient of self – induction of the coil is

(a) 0.2 H

(b) 0.4 H

(c) 0.8 H

(d) 0.1 H

3 years ago

Answers : (1)

Navjyot Kalra
askIITians Faculty
654 Points
										

(d) e = - ?Ø/?t ? 8 = L x 4/0.05

? L = 8 x 0.05 / 4 = 0.1 H

3 years ago
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