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

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

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Electronic Principles
Which one of the following statements best applies to a parallel RLC circuit?

The sum of the current is always less than the applied current
The current waveform for each component always has the same amplitude and phase as the applied current
All of these
None of these
The voltage waveform for each component always has the same amplitude and phase as the applied voltage

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

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

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