Electrical Engineering ⇒ Topic : Series Aiding
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Gopal
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Consider two coils connected in series as shown in Figure. Let L1 = inductance of first coil L2 = inductance of second coil M = mutual inductance between the two coils Series-aiding:-This is the case when the coils are so arranged that their fluxes *aid each other i.e. in the same direction as shown in Figure (a). Suppose the current is changing at the rate di/dt. The total induced e.m.f. in the circuit will be equal to the sum of e.m.f.s induced in L1 and L2 plus the mutually induced e.m.f.s, i.e FIGURE (A)
= (L1+ L2 + 2M) di/dt If LT is the total inductance of the circuit, then, LT = L1+ L2 + 2M ...fluxes additive | |
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