Answer to Question #165814 in Electrical Engineering for Enthada Nokkunne

Question #165814

Two coils A and B are connected in series across a 110V, 60Hz supply. The resistance of coil A is 2  and inductance of coil B is 0.004H. If the input from the supply is 2.4kW and 1.8kVAR, find the inductance of coil A and resistance of coil B. Also calculate the voltage across each coil.

Expert's answer

The frequency is 60 Hz, so, the reactance of the second coil is

So, since the total voltage is 110 V, the connection is series, and the active power output is 2400 W:

The voltage across the first one:

Find the power factor:

The reactance of the first coil can be found from the following:

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