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Electronic Principles

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

2
3
None of these
1

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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

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

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Electronic Principles
Which one of the following equations most directly leads to the resistance of an ordinary household light bulb, assuming that you know the power and voltage rating?

None of these
I = P/E
R = E2/P
P = PR
P = E2/R

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Electronic Principles
Doubling the number of turns of wire in an inductor:

None of these
multiplies the value of inductance by four
reduces the value of inductance by one-half
multiplies the value of inductance by two
reduces the value of inductance by one-fourth

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

thermocouple
photodiode
None of these
solar cell
photo transistor

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

None of these
piezoelectric devices
solar cell
thermocouple
chemical cell

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