Electronic Principles
A device that converts mechanical pressure to electrical energy is called a:

nicad cell
None of these
solar cell
photodiode
piezoelectric device

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Electronic Principles
Molecule is

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
A atom that has an excessive number of electrons in its outer orbit
The smallest particle of a substance that retains the properties of that substance

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Electronic Principles
Doubling the operating frequency of a purely inductive circuit:

None of these
increases the current, but by an amount that can be determined only by doing a complete analysis of the circuit
doubles the amount of current through the inductors
cuts the current through the inductors one-half
has no effect on the current through the inductors

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Electronic Principles
Which one of the following statements is true for voltage in a series circuit?

The total voltage in a series circuit is always less than the value of the smallest voltage
The total voltage of a series circuit is equal to the total current divided by the total resistance
The total voltage in a series circuit is equal to the average value of the individual voltages
The total voltage is equal to the sum of the individual voltages in a series circuit
None of these

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