Question

In a two phase generator, the armature has two distinct windings that are displaced __________ apart.

(a) 45⁰

(b) 90⁰

(c) 135⁰

(d) 180⁰

This question was addressed to me by my college professor while I was bunking the class.

This intriguing question comes from Polyphase System topic in portion Polyphase Circuits of Network Theory

Answer 1

Correct answer is (b) 90⁰

Best explanation: Single phase voltages and currents are generated by single phase generators and the armature of such generator has only one winding or one set of coils. In a two phase generator, the armature has two distinct windings that are displaced 90⁰ apart. θ= 90⁰.