Exam 7: Series Circuits: Resistance, Inductive Reactance, and Capacitive Reactance

The circuit power factor and the____________________ are determined by the resistance and the capacitive reactance that is not canceled by the inductive reactance.

How is the voltage drop across the resistor determined?

____________________ is the result of the combination of resistance and reactance.

The magnitude of V_L - V_C is found by means of the vector multiplication rule of placing vectors head to tail.

Describe a resonant circuit.

What is the formula that defines the power factor curve?

The vector sum of the voltage across the resistor and the voltage across the net inductive reactance is equal to the ____________________.

The voltage component across the inductor (V_L) is rotated counterclockwise so that it leads the current (I) by 90°.

Impedance is the result of the combination of resistance and inductance.

Inductance and capacitance have opposite effects in an ac circuit.

In the formula, V_L=IX_L, the variable V_L represents the ____________________.

Explain how to determine whether the power factor of a circuit is leading or lagging.

At frequencies below resonance, the equation PF = R/Z shows the power factor to be inversely proportional to impedance.

How is the net reactance, in ohms, found for an RLC series circuit?

The inductive reactance is greater than the capacitive reactance, the series circuit has a(n) ____________________ power factor.