15.46: Transformers (Q15.6.8)
- Page ID
- 51533
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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 coil of a transformer. The rms voltage across the secondary coil is 20 V.
(a) What are the voltage across the primary coil and the current through the secondary coil?
(b) What is the ratio of secondary to primary turns for the transformer?
Text Question
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 coil of a transformer. The rms voltage across the secondary coil is 20 V.
(a) What are the voltage across the primary coil and the current through the secondary coil?
(b) What is the ratio of secondary to primary turns for the transformer?
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