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

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

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Electronic Principles
A farad is defined as the amount of capacitance necessary for:

storing 1 V for 1 second
causing an ac phase shift greater than 90 degree
dissipating 1 W of power
None of these
changing the voltage on the plates at the rate of 1 V per second when 1 A of current is flowing

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Electronic Principles
A high-pass filter:

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

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