Electronic Principles
Which one of the following is a statement of Kirchhoffs current law?

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

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Electronic Principles
A high-pass filter:

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

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