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Electronic Principles

Electronic Principles
What kind of device is a diode?

Linear
None of these
Unipolar
Bilateral
Nonlinear

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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?

Permeance
Retentivity
Permeability
There is no valid comparison
Reluctance

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Electronic Principles
A step-down transformer has turns ration of 5:1. If the primary voltage is 120 Vrms, what is the secondary voltage?

24 V
12 V
30 V
None of these
18 V

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Electronic Principles
A flashlight battery has internal resistance of 1W. For what values of load resistance does the flashlight battery appear stiff?

10 Ohm
None of these
100 Ohm or more
50 Ohm
60 Ohm

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Electronic Principles
Suppose the zener diode has a breakdown voltage of 10 V and zener resistance of 8.5 W, what is the additional voltage when the current is 20 mA?

None of these
10.17 V
0.17 V
18.8 V
20 V

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Electronic Principles
In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point

nowhere
up
None of these
down
off the load line

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