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

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

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Electronic Principles
Which one of the following principles best describes the basic operation of an electromagnet?

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

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Electronic Principles
The total capacitance of a series capacitor circuit is:

equal to the source voltage divided by total current
None of these
equal to the sum of the individual capacitance values
equal to the sun of the individual capacitive-reactance values
less than the value of the smallest capacitor

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