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Electronic Principles

Electronic Principles
When the collector current increases, what does the current gain do?

decreases
stays the same
any of the above
None of these
increases

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Electronic Principles
Which is the most widely used semiconductor?

Germanium
None of these
Copper
Silicon
All of these

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Electronic Principles
The equivalent of 1 megohms is:

None of these
1 k ohm
one million ohms
100,000 ohm
one-millionth of an ohm

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Electronic Principles
A certain electromagnet has 1000 turns of wire. How much current must flow through the coil in order to generate an mmf of 100 ampere-turns?

0.1 A
1000 A
None of these
100 A
0.41666666666667

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

None of these
solar cell
photodiode
photo transistor
thermocouple

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Electronic Principles
Holes are the minority carriers in which type of semiconductor?

p-type
Extrinsic
Intrinsic
n-type
None of these

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