The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If…
Physics · JEE Main · NTA Exams — Electromagnetic Induction and Alternating Currents
The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux \(\text { Ф }\) linked with the primary coil is given by \(\Phi=\Phi_{\sharp}+4 t\), where \(\text { Ф }\) is in Wb, t is time in second and \(\Phi_{\sharp}\) is a constant, the output voltage across the secondary coil is
- 30 volt
- 90 volt
- 120 volt
- 220 volt
Answer
(B) 90 volt
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