Electronic Principles
1 Microfarad is the same as:

None of these
1 million picofarads
1 millionth of a picofarad
1 million farads
1000 millifarads

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Electronic Principles
Current is

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

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

The algebraic sum of voltages entering and leaving a point is equal to zero
None of these
The algebraic sum of voltages in a loop is equal to zero
The total voltage in a parallel circuit is less than the value of the smallest voltage
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
A high-pass filter:

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

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