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

piezoelectric devices
chemical cell
thermocouple
None of these
solar cell

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

The total current in a series circuit is equal to the sum of the currents flowing through the individual components in the circuit
The amount of current flow through each part of a series circuit can be different, depending on the resistance of each part and the amount of voltage applied to it
None of these
The total current in a series circuit is equal to the total voltage multiplied by the total resistance
The same current flows through every part of a series circuit

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Electronic Principles
Which one of the following statements is true?

None of these
All of these
Power dissipation of a pure capacitor increases with operating frequency
Power dissipation of a pure capacitor decreases with operating frequency
There is no meaningful relationship between the power dissipation of a pure capacitor and its operating frequency

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