Networks Analysis and Synthesis - Engineering

Q1:

A two terminal black box contains one of the elements R, L, C. The black box is connected to 220 V as supply. The current is I, when a capacitance of 0.1 F is connected in series between the source and box, the current is 2I. The elements is

A resistance

B inductance

C capacitance of 0.5 F

D not identifiable form the given data

ANS:B - inductance

No answer description is available.