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Electronic Principles

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

None of these
80 W
325 kW
0.625 W
0.24 W

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Electronic Principles
What kind of battery is most likely included in a cordless electric knife?

Lead-acid battery
Mercury-cell battery
Nicad battery
None of these
Zinc-carbon battery

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Electronic Principles
Assuming 100% efficiency, what is the power being applied to the primary winding of the transformer described in the above question?

20 W
None of these
1000 W
200 W
100 W

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Electronic Principles
Which one of the following equations most directly determines the amount of current flowing through a resistor when you know the value of the resistor and the voltage drop across it?

I = ER
I = E/R
E = I2R
E = PR
None of these

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Electronic Principles
In a transistor operates at the middle of the load line, an increase in the base resistance will move the Q point

nowhere
off the load line
None of these
down
up

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Electronic Principles
A basic capacitor is composed of:

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

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