Alternating Current

Front

The working voltage in an ac circuit should be

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at least 50 percent greater than the highest applied voltage

Front

The term that describes the combined resistive forces in an ac circuit is

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impedance

Front

The basis for transformer operation in the use of alternating current is mutual

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inductance

Front

The opposition offered by a coil to the flow of alternating current is called (disregard resistance)

Back

inductive reactance

Front

An increase in which of the following factors will cause an increase in the inductive reactance of a circuit? Inductance and frequency, Resistance and voltage, Resistance and capacitive reactance

Back

Inductance and frequency

Front

When different rated capacitors are connected in series in a circuit, the total capacitance is

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less than the capacitance of the lowest rated capacitor

Front

Capacitors are sometimes used in DC circuits to

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smooth out slight pulsations in current/voltage

Front

In an ac circuit, the effective voltage is

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less than the maximum instantaneous voltage

Front

The amount of electricity a capacitor can store is directly proportional to the

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plate area and inversely proportional to the distance between the plates

Front

What is the total capacitance of a circuit containing three capacitors with capacitances of .02 microfarad, .05 microfarad, and .10 microfarad, respectively?

Back

.0125 uF