Electronic Principles
A transformer has a primary voltage of 120 V rms and a secondary voltage of 25 V rms. If the secondary current is 1A rms, what is the primary current?

208 mA
None of these
300 mA
200 mA
7.8 mA

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Electronic Principles
Which one of the following statements is true for voltage in a series circuit?

None of these
The total voltage of a series circuit is equal to the total current divided by the total resistance
The total voltage in a series circuit is always less than the value of the smallest voltage
The total voltage is equal to the sum of the individual voltages in a series circuit
The total voltage in a series circuit is equal to the average value of the individual voltages

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