KERALA UNIVERSITY Class 5 electrical technology Question Paper 2021

Practice authentic previous year questions for better exam preparation.

Sample Questions

An § pole lap wound armature of a do machine has 960 conduclors, 32 mWb flux per pole and speed of 400 rpm , Calculate the emi generated on opon circuit. If the above armalure were wave connected, al what speed must it be driven to generale 400 V ?
Whal do you mean by back eml in a DC molor? Whal is its significance?
What are the applications of DC series motor? Explain why series molors are never slarted on No-load?
Derive the ent equation of a single phase trans[ormer.
Derive the condition for maximum efficiency of a Iransformer.