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ELECTRONIC PRINCIPLES

Electronic Principles
Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question?

None of these
100 W
1000 W
20 W
200 W

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Electronic Principles
To get the Thevenin voltage, you have to

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

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

There is no valid comparison
Retentivity
Reluctance
Permeance
Permeability

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

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

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Electronic Principles
Doubling the operating frequency of an inductive circuit:

None of these
multiplies the inductive reactance by 6.28
doubles the amount of inductive reactance
has no effect on the inductive reactance
cuts the inductive reactance in half

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