Correct option is C
Given that,
VP=500 V,VS=100 V,R1′=0.3Ω
So that equivalent resistance of transformer referred to the secondary side can be calculated asR2′0.3=(100500)2
∴R2′=0.012Ω
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Question
A 10 kVA 500/100 V transformer has the resistance referred to primary is 0.3 Ω. The equivalent resistance of transformer referred to secondary is:
Correct option is C
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