Electronic Principles
To get the Thevenin voltage, you have to

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

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Electronic Principles
Which one of the following phrases best describes residual magnetism?

The circular magnetic field that surrounds a conductor carrying a current
The force of attraction between the poles of a permanent and temporary magnetic field
None of these
Magnetism that remains in the core of an electromagnet after the current through the coil is turned off
The amount of magnetic flux that is not confined to the core material of an electromagnet

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