engineering recuitment JSSC JE Mock Test 2023 Electrical Machines Transformer Transformer on No Load

What is the magnetising component (Im) of no load current (Io) wherein primary voltage is V1?

1
Im = Io sin ϕ lagging V1 by 90°
2
Im = Io sin ϕ leading V1 by 90°   
3
Im = Io cos ϕ leading V1 by 90° 
4
Im = Io cos ϕ lagging V1 by 90°
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