Contemporary Electronics Fundamentals, Devices, Circuits, and Systems 1st Edition by Louis Frenzel

تمرين 5

In Fig. 19-9, the ammeter, M 1 , reads an ac current of 25 mA with S 1 in position 2.
a. Why is there less current in the circuit with S 1 in position 2 compared to position 1
b. How much is the inductive reactance, X L , of the coil (Ignore the effect of the coil resistance, r i.)
In Fig. 19-9, how much inductive reactance, X L , does the coil have with S 1 in position 1 Explain your answer.