Electronic Principles
What form of energy is used to maintain an imbalance of charges between the terminals of a battery?

Electronical energy
Mechanical energy
Chemical energy
None of these
Solar energy

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Electronic Principles
Which one of the following principles best describes the basic operation of a generator?

Like magnetic poles repel; unlike poles attract
Current flowing through a conductor generates a magnetic field
None of these
Like magnetic poles attract; unlike poles repel
Current is induced in a conductor that is moving through a magnetic field

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Electronic Principles
Which one of the following statements most accurately applies to the frequency of a waveform?

The longer the period of a waveform, the lower its frequency
None of these
The actual frequency of a sine waveform is 1.41 times the working frequency
The higher the amplitude of a waveform, the higher its frequency
Unless specified otherwise, the frequency of a waveform is assumed to be 60 Hz

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

The total current in a series circuit is equal to the total voltage multiplied by the total resistance
None of these
The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it
The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit
The same current flows through every part of a series circuit

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