Electronic Principles
Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question?

None of these
1000 W
200 W
20 W
100 W

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Electronic Principles
Molecule is

A atom that has an excessive number of electrons in its outer orbit
A atom that flows whenever there is an imbalance of electrical charges between two points
A atom that has a shortage of electrons in its outer orbit
The smallest particle of a substance that retains the properties of that substance
None of these

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Electronic Principles
The rms value of a sine waveform is:

equal to 1.41 times the peak amplitude
equal to 0.707 times the peak amplitude
None of these
the number of cycles completed in one second
the time required to complete one full cycle

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

The voltage always has the same amplitude and phase for every part of the circuit
The total voltage is equal to the sum of the voltages across the resistance and inductance
None of these
The total voltage lags the total current by less than 90
The total voltages is less than the sum of the voltages across the resistance and inductance

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