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Electronic Principles

Electronic Principles
Silicon atoms combine into an orderly pattern called a

Covalent bond
None of these
Valence orbit
Semiconductor
Crystal

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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?

3.75 mA
13 mA
None of these
3.2 mA
0.05 mA

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Electronic Principles
A battery is a device composed of one or more:

chemical cells
solar cells
None of these
piezoeletric cells
voltage generators

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

solar cell
chemical cell
electric device
None of these
thermocouple

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Electronic Principles
A power transformer steps 100 V down to 10 V. If the current in its primary winding is 2 A, what is the current in the secondary winding?

50 A
20 A
None of these
0.20833333333333

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

p-type
Intrinsic
n-type
Extrinsic
None of these

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