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

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

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Electronic Principles
Molecule is

The smallest particle of a substance that retains the properties of that substance
A atom that has an excessive number of electrons in its outer orbit
A atom that has a shortage of electrons in its outer orbit
None of these
A atom that flows whenever there is an imbalance of electrical charges between two points

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Electronic Principles
Which one of the following phrases most accurately describes a purely capacitive circuit?

Capacitive reactance provides the only opposition to current flow
None of these
Combinations of resistance and capacitive reactance provide any opposition to current flow
Resistances provide the only opposition to current flow
The ac voltage leads the current by 90 degree

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