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Alternating Current question

2018 · 16 Apr · Shift 1 · Q56

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JEE Main
Physics
Alternating Current
2018 · 16 Apr · Shift 1 · Q56

Alternating Current question

2018 · 16 Apr · Shift 1 · Q56

JEE MainPhysicsAlternating CurrentMCQ+4 / −1

A power transmission line feeds input power at 2300 V to a step down transformer with its primary windings having 4000 turns, giving the output power at 230 V. If the current in the primary of the transformer is 5 A, and its efficiency is 90%, the output current would be ;

A
50 A
B
45 A
C
25 A
D
20 A

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