12. A transformer has an input voltage of 100 V and an output voltage of 10,000 volts. If the primary coil has 100 turns and the input current is 2 A, what is the output current, and how many turns does the secondary coil have? (Understand and use the transformer equations). 13. Explain how the capacitive reactance changes with ac frequency? What about the inductive reactance? (Know how capacitors and inductors change their resistance with frequency and use that in Ohm's law