Two inductive reactance’s of 20 Ω and 5 Ω are connected in parallel across a 220 V 50 Hz sinusoidally varying voltage. The effective (net) value of the inductive reactance seen by the source if source voltage and frequency are changed to 110 V and 25 Hz is:

Two inductive reactance’s of 20 Ω and 5 Ω are connected in paralle

1.	Two inductive reactance’s of 20 Ω and 5 Ω are connected in parallel across a 220 V 50 Hz sinusoidally varying voltage. The effective (net) value of the inductive reactance seen by the source if source voltage and frequency are changed to 110 V and 25 Hz is:
A.	5 Ω
B.	1 Ω
C.	2 Ω
D.	4 Ω
Answer» D. 4 Ω