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Electronic Principles

Electronic Principles
Most AC power is obtained from:

generators
oscillators
None of these
batteries
lightning

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Electronic Principles
An audio transformer has a turn ratio of 9, What is its impedance ratio?

81
85
None of these
6
9

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Electronic Principles
What are the main parts of an atom?

None of these
Protons only
Electrons, protons, and ions
Electrons, protons, and neutrons
Electrons, ions, and neutrons

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Electronic Principles
When operating above its resonant frequency, a series RLC circuit has the characteristics of a:

purely resistive circuit
series RLC circuit operated below its resonant frequency
None of these
series RC circuit
series RL circuit

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

2
None of these
3
1

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Electronic Principles
Household light bulbs have a given power rating, and they operate at 120 V. Which one of the following equations most directly provides the current rating of these light bulbs?

P = I2R
I = P/E
None of these
P = E2/R
P = IE

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