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

None of these
thermocouple
solar cell
piezoelectric devices
chemical cell

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Electronic Principles
The total inductive reactance of a parallel inductor circuit is:

less than the inductance value of the smallest inductor
equal to the source voltage divided by total current
equal to the sum of the individual inductance values
equal to the sum of the individual inductive-reactance values
None of these

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

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

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Electronic Principles
A low-pass filter:

passes lower-frequency signals and reduces higher-frequency signals
has no effect on ac signals
passes higher-frequency signals and reduces lower-frequency signals
None of these
reduces the level of all frequencies by a significant amount

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