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(i) Define mutual inductance. (ii) A pair of adjacent coils has a mutual inductance of 1.5 H. If the current in one coil changes from 0 to 20 A in 0.5 s, what is the change of flux linkage with the other coil ? |
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Answer» SOLUTION :(i) See Point NUMBERS 21 and 22 under the heading "Chapter At a Glance". (ii) Here M = 1.5 H, `I_(1) = 0 A and I_(2) = 20 A` Magnetic flux linked with coil number `2, phi_(2) = MI_(1)` `THEREFORE Deltaphi_(2) = MDeltaI_(1) = M(I_(2)-I_(1)) = 1.5 xx (20 - 0) = 30 Wb` |
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