Capstone AC & DC Circuits Review

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The basic inductor is made of _______

a wire wrapped around an insulating or conductive core.

In a capacitor, the current ________ the applied voltage by _________.

leads, 90 degrees

In some capacitors there is a small amount of current that flows from one plate, through the dielectric material to the other plate. This current is called _____ current.

leakage

The basic unit of capacitance is the _______

Farad

The basic unit of inductance is the _______

Henry

Inductors are found _______

In both AC & DC Circuits

In a capacitor, the current ________ the applied voltage.

Leads

A resistor's percent of error is called ________

Tolerance

Hertz is the same as _______

cycles per second

The number of cycles in one second is called _______

frequency

The combination of inductive reactance and resistance is called

impedance

Capacitors are found _______

in both AC & DC circuits

As frequency decreases, capacitive reactance _______

increases

Current in a series circuit _______

is the same at all points.

A component's voltage drop is calculated by _______

multiplying I by the component's R.

An open component provides _______

no path for current

A shorted component provides _______

no resistance to current.

A conductor is normally made of atoms with _____ electrons in the valance shell.

one to three

Alternating current _______

reverses direction many times each second.

The basic capacitor is made of _______

two metal plates separated by a dielectric.

A resistor whose values can be varied over a range of values is called a _____ resistor.

variable


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