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Electronic Principles

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

0.995 mA
157 raA
0.151 mA
2.02 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?

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

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Electronic Principles
The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values?

0.93 W
0.93 V
9.3 W
None of these
0.041666666666667

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Electronic Principles
A transistor has how many doped regions?

4
3
2
None of these
1

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Electronic Principles
A device that converts mechanical pressure to electrical energy is called a:

nicad cell
piezoelectric device
solar cell
None of these
photodiode

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Electronic Principles
A circuit has two different voltage sources that are connected in a series-opposing form. If the sources are rated at 6 V and 9 V, what is the total source voltage?

7.5 V
16 V
3 V
None of these
8 V

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