Electronic Principles
To get the Norton current, you have to

None of these
Short the load resistor
Open the load resistor
Short the voltage source
Open the voltage source

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

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

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

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
None of these
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

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