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Electronic Principles

Electronic Principles
Which is the most widely used semiconductor?

All of these
Germanium
Copper
Silicon
None of these

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Electronic Principles
Who invented the first junction transistor?

Fisher
None of these
Shockley
Smith
Gomes

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Electronic Principles
How many types of flow are there in a semiconductor?

None of these
3
1
2

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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?

10.17 V
0.17 V
20 V
18.8 V
None of these

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Electronic Principles
A diode is in series with 220W. If the voltage across the resister is 4V, what is the current through the diode?

None of these
55.86 A
55 A
18.2 mA
16.3 mA

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

0.05 mA
3.2 mA
None of these
13 mA
3.75 mA

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