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GATE 2023 Electrical Machines Quiz 27

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Question 1

An Isolation Transformer has Primary to Secondary turns ratio of

Question 2

Transformers are rated in kVA instead of kW because

Question 3

Why are transformer stampings varnished before being used to build the core?

Question 4

Current needed to set up the flux in an ideal transformer will be

Question 5

Consider the source, transformer and load shown in the figure below. When the switch is closed, the rms value of source current is

Question 6

For the circuit shown in the figure if VS = 10 Vrms and R = 420Ω. The average  power dissipated in the 1Ω resistor is_____.

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Sep 20ESE & GATE EE