Complex numbers can be added and subtracted but not multiplied or divided.

More Questions from RC Circuits

• Positive numbers can be represented by points to the right of the origin on the horizontal axis of a graph.
• A complex number represents a phasor quantity.
• The impedance of a series RC circuit varies directly with frequency.
• In a lag network, the output voltage lags the input voltage in phase.
• The resistor voltage is always out of phase with the current.
• Apparent power is expressed in watts.
• A filter passes all frequencies.
• In an RC circuit, the impedance is determined by both the resistance and the capacitive reactance combined.
• An imaginary number is one that exists only in the mind of the mathematician.
• Total current in an RC circuit always leads the source voltage.

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