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Calculate the change in flux of an inductor having inductance 4000 H, number of turns is 200 and the current changes from 5A to 7A.(a) 20 Wb(b) 40 Wb(c) 60 Wb(d) 80 Wb |
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Answer» The correct choice is (b) 40 Wb To explain: From the formula of incremental inductance, we know that: L=(Change in flux/Change in current)*Number of turns Substituting the values from the given question, we get change in flux = 40 Wb. |
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