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Electronic Principles

Electronic Principles
How much current flows through a 0.02-H choke that is operating from a 12-V ac, 100-Hz source?

0.02 A
2.02 A
0.41666666666667
0.955 A
None of these

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Electronic Principles
Which one of the following properties of a magnetic circuit can be directly compared to current in an electrical circuit?

Magnetomotive force
Flux density
Number of lines of force
None of these
Reluctance

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Electronic Principles
To get the Norton current, you have to

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

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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?

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

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Electronic Principles
When operating above its resonant frequency, a parallel RLC circuit has the characteristics of a:

purely resistive circuit
parallel RC circuit
None of these
parallel RL circuit
parallel RLC circuit operated above its resonant frequency

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Electronic Principles
What kind of device is a diode?

Nonlinear
None of these
Unipolar
Bilateral
Linear

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