14) The reactance of a transformer is determined by its :
Answer is:
leakage flux
Related Transformers MCQ - Electrician (Set-1) with Answers
Answer is:
decreasing the thickness of the laminations
17) The main property of a transformer is this that it changes the voltage level of an a.c. signal :
Answer is:
without changing its power, frequency and shape
Answer is:
kVA
Explanation:
The copper and iron are the two type of losses occur in the transformer. The copper loss depends on the current (ampere) flows through the windings of the transformer while the iron loss depends on the voltage (volts). i.e., the rating of the transformer is in kVA.