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The primary and secondary coils of a tra...

The primary and secondary coils of a transmformer have `50` and `1500` turns respectively. If the magnetic flux `phi` linked with the primary coil is given by `phi=phi_(0)+4t`, where `phi` is in weber, `t` is time in second and `phi_(0)` is a constant, the output voltage across the secondary coil is

A

30 volts

B

90 volts

C

120 volts

D

220 volts

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The correct Answer is:
c
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