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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?

80 W
None of these
325 kW
0.625 W
0.24 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
E = PR
E = I2R
I = E/R
None of these

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

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

None of these
0.955 A
0.41666666666667
2.02 A
0.02 A

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Electronic Principles
Electron current is flowing through a conductor in a direction you might describe as straight into this page. What is the direction of the resulting magnetic field?

Clockwise
Into this page
Out of this page
None of these
Counterclockwise

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Electronic Principles
At cut off, the Q point is at

infinity
middle of the load line
None of these
lower end of the load line
upper end of the load line

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