A power transformer is used to step up an alternating e.m.f. of 220 V – McqOptions

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1.	A power transformer is used to step up an alternating e.m.f. of 220 V to 11 kV to transmit 4.4 kW of power. If the primary coil has 1000 turns, what is the current rating of the secondary ? Assume 100% efficiency for the transformer [MP PET 1997]
A.	4 A
B.	0.4 A
C.	0.04 A
D.	0.2 A
Answer» C. 0.04 A

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