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Electronic Principles

Electronic Principles
How many protons does the nucleus of a silicon atom contain?

29
14
48
4
None of these

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Electronic Principles
The transistor has a collector current of 2 mA. If the current gain is 135, what is the base current?

7.75 µA
None of these
14.8 µA
10.3 µA
7.8 µA

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Electronic Principles
Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold

None of these
22, 000 Ohm, 10%
220 Ohm, 10%
220 Ohm, 5%
22,000 Ohm, 5%

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Electronic Principles
What is the barrier potential of a silicon diode at room temperature?

0.3V
None of these
1 V
0.7V
2 m V per degree Celsius

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

solar cell
photodiode
nicad cell
None of these
piezoelectric device

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Electronic Principles
The barrier potential accross each depletion layer is

20 V
0.8 V
None of these
0.7 V

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