Electronic Principles
To get the Thevenin voltage, you have to

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

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Electronic Principles
Doubling the operating frequency of a purely inductive circuit:

increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit
cuts the current through the inductors one-half
doubles the amount of current through the inductors
None of these
has no effect on the current through the inductors

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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
Current is induced in a conductor that is moving through a magnetic field
Like magnetic poles attract; unlike poles repel

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