Electronic Principles
Suppose a voltage source has an ideal voltage of 12V and an internal resistance of 0.5W. For what values of load resistance will the voltage source appear stiff?

None of these
50 Ohm or more
6 Ohm
5 Ohm
100 Ohm

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Electronic Principles
When applying a square waveform to a capacitor, the circuit tends to:

None of these
peak the current and round off the voltage waveforms
peak both the voltage and current waveforms
peak the voltage and round off the current waveforms
round off both the voltage and current waveforms

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Electronic Principles
When a parallel RLC circuit is operating at its resonant frequency:

the difference between inductive and capacitive reactance is equal to the resistance
None of these
capacitive reactance is greater than the inductive reactance
inductive reactance is equal to the capacitive reactance
inductive reactance is greater than the capacitive reactance

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

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

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