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Electronic Principles

Electronic Principles
Positive ions are atoms that have

Lost a proton
Lost an electron
Gained a proton
None of these
Gained an electron

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Electronic Principles
A dielectric material is:

a poor conductor of electrostatic fields
a good insulator
None of these
a good conductor
a good conductor of magnetic fields

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Electronic Principles
What is the power dissipation of a resistance that has 24 V dropped across it and 0.25 A flowing through it?

None of these
6 W
3 W
64 W
122 W

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Electronic Principles
What is the capacitive reactance of a 0.1 micro F capacitor that is operating at 1000 Hz?

1590 Ohm
690 Ohm
less than 1 Ohm
312 Ohm
None of these

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Electronic Principles
At room temperature an intrinsic silicon crystal acts approximately like

a conductor
None of these
an insulator
a battery
a piece of copper wire

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Electronic Principles
The voltage across a 1N4001 is 0.93V when the current is 1A. What is the power dissipation of the diode for these values?

0.93 W
0.93 V
None of these
0.041666666666667
9.3 W

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