A brass core is inserted in the coil the ammeter reads 3 a


a. An air-core coil is connected to a 200-V, 60-Hz source. The current is found to be 4 A, and a wattmeter reading of 80 W is observed. Find the effective resistance and the inductance of the coil.

b. A brass core is inserted in the coil. The ammeter reads 3 A, and the wattmeter reads 90 W. Calculate the effective resistance of the core. Explain the increase over the value of part (a).

c. If a solid iron core is inserted in the coil, the current is found to be 2 A, and the wattmeter reads 60 W. Calculate the resistance and inductance of the coil. Compare these values to the values of part (a), and account for the changes.

Request for Solution File

Ask an Expert for Answer!!
English: A brass core is inserted in the coil the ammeter reads 3 a
Reference No:- TGS01671795

Expected delivery within 24 Hours