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Electronic Principles

Electronic Principles
Holes act like:

Crystals
Positive charges
Negative charges
None of these
Atoms

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Electronic Principles
Determine the resistance value and tolerance of a resistor that has the following color bands; first band is red, second band is red, third band is orange, and the fourth band is gold

220 Ohm, 10%
22, 000 Ohm, 10%
22,000 Ohm, 5%
None of these
220 Ohm, 5%

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Electronic Principles
The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be:

No more than 10% less than the primary current
Twice the primary current
One-half the primary current
Same as the primary current
None of these

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Electronic Principles
1 Microfarad is the same as:

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

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Electronic Principles
The component that forms the electrical connection between the rotating coil of wire in a motor and the external source of electrical energy is called the:

battery
None of these
rotor
armature
commutator

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Electronic Principles
The valence electron of a copper atom experiences what kind of attraction toward the nucleus?

Weak
Impossible to say
Strong
Neutral
None of these

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