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

thermocouple
None of these
chemical cell
solar cell
piezoelectric devices

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Electronic Principles
A circuit has a Norton current of 10 mA and a Norton resistance of 10 kW. What is the Thevenin circuit?

1000 V and a parallel resistance of 10 kOhm
100 V and a series resistance of 10 k Ohm
None of these
100 V and a parallel resistance of 10 k Ohm
1000 V and a series resistance of 10 k Ohm

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Electronic Principles
Current is

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

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Electronic Principles
A low-pass filter:

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

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