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Electronic Principles

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

None of these
photo transistor
thermocouple
photodiode
solar cell

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Electronic Principles
Absolute Zero temperature equals

25o C
0o C
-273o C
-276o C
None of these

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Electronic Principles
Doubling the operating frequency of an inductive circuit:

cuts the inductive reactance in half
has no effect on the inductive reactance
doubles the amount of inductive reactance
multiplies the inductive reactance by 6.28
None of these

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Electronic Principles
What is the barrier potential of a silicon diode at room temperature?

2 m V per degree Celsius
0.3V
None of these
1 V
0.7V

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Electronic Principles
How much current flows through a 0.02 micro F capacitor that is operating from a 12-V ac, 100-Hz source?

0.151 mA
None of these
0.995 mA
2.02 A
157 raA

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

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

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