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

None of these
The total voltages is equal to the sum of the voltages across the resistance and inductance
The total voltage lags the total current by less than 90
The total voltage is less than the sum of the voltages across the resistance and inductance
The voltage always has the same amplitude and phase for every part of the circuit

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Electronic Principles
Waveforms are graphs that show:

frequency on the vertical axis and amplitude on the horizontal axis
amplitude on the vertical axis and the passage of time on the horizontal axis
the passage of time on the vertical axis and amplitude on the horizontal axis
None of these
amplitude on the vertical axis and frequency on the horizontal axis

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

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

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