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) ... in magnitude = (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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