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Electronic Principles

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

2.02 A
0.41666666666667
0.02 A
None of these
0.955 A

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Electronic Principles
An intrinsic semiconductor has some holes in it at room temperature. What causes these holes?

Doping
Free electrons
Valence electrons
Thermal energy
None of these

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Electronic Principles
Which one of the following equations most directly determines the power dissipation of a resistance when you know the power dissipation of a resistance when you know the voltage drop and current?

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

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Electronic Principles
How much power is being dissipated by a 1000 W resistance that has 25 V applied to it?

None of these
0.24 W
0.625 W
80 W
325 kW

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Electronic Principles
A resistor has a rated value of 100 ohm and a tolerance of 10%. What is its minimum and maximum allowable resistance value?

90 Ohm - 110 ohm
98 Ohm - 100.1 ohm
90 Ohm - 101 ohm
None of these
99 Ohm - 102 ohm

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Electronic Principles
A basic capacitor is composed of:

two conductors separated by a dielectric
two dielectrics separated by a conductor
None of these
two coils separated by a dielectric
two coils separated by a conductor

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