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Electronic Principles

Electronic Principles
Who invented the first junction transistor?

Smith
None of these
Shockley
Gomes
Fisher

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

photodiode
None of these
photo transistor
thermocouple
solar cell

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Electronic Principles
The merging of a free electron and a hole is called

Covalent bonding
None of these
Lifetime
Recombination
Thermal energy

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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?

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

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Electronic Principles
Suppose the peak value of a sinusoidal voltage is 50 V. What is the rms value?

None of these
30.4 V
37.4 V
38.74 V
35.4 V

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Electronic Principles
The equivalent of 1 megohms is:

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

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