The number of turns in the primary and secondary of a transformer are N P and N S…
Physics · NEET · NTA Exams — Electromagnetic Induction and Alternating Currents
The number of turns in the primary and secondary of a transformer are NP and NS respectively. The resistance of the secondary circuit is RS. Then equivalent resistance of primary circuit is
- \(R_{5} \frac{N_{5}}{N_{p}}\)
- \(R_{5}\left(\frac{N_{5}}{N_{F}}\right)^{2}\)
- \(R_{5} \frac{N_{p}}{N_{5}}\)
- \(R_{5}\left(\frac{N_{p}}{N_{5}}\right)^{2}\)
Answer
(D) R_ 5 ( N_ p N_ 5 )^ 2
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