A rectangular iron core has three coils as shown in the given figure. The number of turns of the coils are Na = 300, Nb = 600 and Nc = 600, and the respective currents are 1.5 A, 4 A and 3 A. Find the total magnetomotive force.

A rectangular iron core has three coils as shown in the given figure.

1.	A rectangular iron core has three coils as shown in the given figure. The number of turns of the coils are Na = 300, Nb = 600 and Nc = 600, and the respective currents are 1.5 A, 4 A and 3 A. Find the total magnetomotive force.
A.	1050 AT
B.	3750 AT
C.	4650 AT
D.	1136 AT
Answer» B. 3750 AT

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A rectangular iron core has three coils as shown in the given figure. The number of turns of the coils are Na = 300, Nb = 600 and Nc = 600, and the respective currents are 1.5 A, 4 A and 3 A. Find the total magnetomotive force.

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