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

chemical cell
None of these
piezoelectric devices
solar cell
thermocouple

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

None of these
The total voltage is greater than the sum of the voltages across the resistance and capacitance
The voltage always has the same amplitude and phase for every part of the circuit
The total voltage is less than the sum of the voltages across the resistance and capacitance
The total voltage is equal to the sum of the voltages across the resistance and capacitance

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Electronic Principles
Which one of the following is a statement of KirchhofFs voltage law?

The algebraic sum of voltages in a loop is equal to zero
None of these
The total voltage in a parallel circuit is less than the value of the smallest voltage
The algebraic sum of voltages entering and leaving a point is equal to zero
The voltage drop across a resistance is proportional to the value of resistance and the amount of current flowing through it

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Electronic Principles
Current is

An imbalance of electrical charges
None of these
The force that causes electrons to flow
The flow of charged particles through a material
The number of free electrons in an atom

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