Electronic Principles
A farad is defined as the amount of capacitance necessary for:

causing an ac phase shift greater than 90 degree
None of these
storing 1 V for 1 second
dissipating 1 W of power
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing

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

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

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Electronic Principles
A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit?

1000 V and a parallel resistance of 10 kOhm
100 V and a series resistance of 10 k Ohm
None of these
100 V and a parallel resistance of 10 k Ohm
1000 V and a series resistance of 10 k Ohm

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