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Electronic Principles

Electronic Principles
A transistor has a current gain of 125 and a base current of 30 µA. What is the collector current?

3.75 mA
3.2 mA
0.05 mA
None of these
13 mA

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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?

0.17 V
18.8 V
None of these
20 V
10.17 V

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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
8 V
3 V
16 V
None of these

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Electronic Principles
1 Microfarad is the same as:

None of these
1000 millifarads
1 millionth of a picofarad
1 million picofarads
1 million farads

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

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

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Electronic Principles
What is the algebraic sum of this series of values:+2, -3, -6,+4?

-6
-3
None of these
2

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