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Electronic Principles

Electronic Principles
The rotating coil of wire in an electric motor is called the:

loop
commutator
armature
brush
None of these

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Electronic Principles
If a load resistance is 1 kW, a stiff voltage source has a resistance of

More than 100 k Ohm
None of these
less than 10 Ohm
At least 10 Ohm
Less than 100 k Ohm

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Electronic Principles
An ideal voltage source has

A load dependent voltage
Zero internal resistance
Infinite internal resistance
None of these
A load-dependent current

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Electronic Principles
Silicon atoms combine into an orderly pattern called a

None of these
Semiconductor
Valence orbit
Covalent bond
Crystal

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Electronic Principles
Positive ions are atoms that have

Lost an electron
Gained a proton
Lost a proton
Gained an electron
None of these

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Electronic Principles
The transistor has a current gain of 175. If the base current is 0.1 mA, what is the collector current?

17.5 mA
1750 mA
1.75 mA
175 mA
None of these

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