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Electronic Principles

Electronic Principles
Holes act like:

Crystals
Negative charges
Atoms
None of these
Positive charges

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Electronic Principles
If a load resistance is 1 kW, a stiff voltage source has a resistance of

None of these
More than 100 k Ohm
less than 10 Ohm
Less than 100 k Ohm
At least 10 Ohm

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Electronic Principles
Which one of the following properties of a magnetic circuit can be directly compared to resistance in an electrical circuit?

There is no valid comparison
Permeance
Permeability
Retentivity
Reluctance

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

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

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Electronic Principles
What is the total resistance of a parallel circuit that contains two resistors having values of 220 ohm and 470 ohm?

None of these
220 ohm
150 ohm
445 ohm
690 ohm

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Electronic Principles
For normal operation of the transistor, the collector diode has to be

Operating in the breakdown region
Nonconducting
None of these
Reverse-biased
Forward-biased

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