An ac source of emf delivers 5.0 mW of power at an rms current of 2.0 mA when it is connected to the primary cod of a transformer. The rms voltage across the secondary coil is 20 V. (a) What are die voltage across the primary coil and the current through the secondary coil? (bL\What is the ratio of secondary tu primrary turms tor the transformer?

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An ac source of emf delivers 5.0 mW of power at
an rms current of 2.0 mA when it is connected to
the primary cod of a transformer. The rms
voltage across the secondary coil is 20 V. (a) What
are die voltage across the primary coil and the
current through the secondary coil? (hLWhat ic
the ratio of se
econdary to primary turms for the
transformer?
Transcribed Image Text:An ac source of emf delivers 5.0 mW of power at an rms current of 2.0 mA when it is connected to the primary cod of a transformer. The rms voltage across the secondary coil is 20 V. (a) What are die voltage across the primary coil and the current through the secondary coil? (hLWhat ic the ratio of se econdary to primary turms for the transformer?
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