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A transformer is connected to an outlet. The graph shows the input voltage (voltage across the primary) and output voltage (voltage across the secondary and resistor) as a function of time. The resistor is connect across the seconday has a value of 200 ohm. Restart.

1. If the primary has 400 windings, how many windings does the secondary have?
2. What is the rms current delivered to the primary?
3. How much power is delivered to the resistive load?

Problem authored by Anne J. Cox.
Script authored by Morten Brydensholt and modified by Anne J. Cox.