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Electronic Principles

Electronic Principles
What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz?

None of these
690 Ohm
less than 1 Ohm
1590 Ohm
312 Ohm

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Electronic Principles
Which one of the following devices is most often used for measuring opposition to current flow in a circuit?

Ammeter
Wattmeter
None of these
Voltmeter
Ohmmeter

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Electronic Principles
To get the Norton current, you have to

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

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Electronic Principles
When the Q point moves along the load line, the voltage increases when the current

Stays the same
Decreases
None of these
Increases
Can be any of above

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Electronic Principles
How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?

0.24 W
325 kW
None of these
0.625 W
80 W

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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
Permeability
Permeance
Retentivity
Reluctance

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