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The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux $ϕ$ linked with the primary coil is given by $ϕ = ϕ_{0} + 4 t$ , where $ϕ$ is in weber, t is time in second and $ϕ_{0}$ is a constant, the output voltage across the secondary coil is :

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detailed solution

Correct option is B

Induced emf in primary coil Ep=dϕdt=ddtϕ0+4t=4 VInduced emf in secondary coilEsEp=NsNp⇒Es4=150050⇒Es=120 V

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The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux ϕ linked with the primary coil is given by ϕ=ϕ0+4t, where ϕ is in weber, t is time in second and ϕ0 is a constant, the output voltage across the secondary coil is :

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Ready to Test Your Skills?

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The primary and secondary coils of a transformer have 50 and 1500 turns respectively. If the magnetic flux $ϕ$ linked with the primary coil is given by $ϕ = ϕ_{0} + 4 t$ , where $ϕ$ is in weber, t is time in second and $ϕ_{0}$ is a constant, the output voltage across the secondary coil is :