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NEET UG PHYSICS MCQ: CURRENT ELECTRICITY

1 Hard

1 of 1

Application +4 | -1

A transformer operating at primary voltage of

4 \mathrm{~kV}

and secondary voltage of

90 \mathrm{~V}

serves a load of

90 \mathrm{~KW}

at secondary. Assuming the transformer to be operating at

90 \%

efficiency with purely resistive load, the loads in the primary and secondary are

View answer and explanation

Correct option: D

160 \Omega, 0.09 \Omega

Option D (

160 \Omega, 0.09 \Omega

) is correct because it calculates the primary and secondary resistances based on the given voltages, power, and efficiency of the transformer.

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\mathrm{is}\,\,\mathrm{/}\,\,\mathrm{are}