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A step down transformer connected to an ac mains supply of \( 220 \mathrm{~V} \) is made to operate at \( 11 \mathrm{~V}…

Q1

A step down transformer connected to an ac mains supply of \( 220 \mathrm{~V} \) is made to operate at \( 11 \mathrm{~V}, 44 \mathrm{~W} \) lamp. Ignoring power losses in the transformer, what is the current in the primary circuit?

[NEET 2021]

a

\( 0.4 \mathrm{~A} \)

b

\( 2 \mathrm{~A} \)

c

\( 4 \mathrm{~A} \)

d

\( 0.2 \mathrm{~A} \)

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