Question

The admittance of a system is 10 ohm^-1, calculate its impedance.

(a) 10 ohm

(b) 0.1 ohm

(c) 1 ohm

(d) 1.1 ohm

This question was posed to me in an online interview.

My question is from Basic AC Parallel Circuits topic in portion Single-Phase Parallel Networks of Basic Electrical Engineering

Answer 1

The correct choice is (b) 0.1 ohm

To explain: We know that: Z=1/Y.

Z = 1/10 = 0.1  =>  Z = 0.1 ohm.