Capstone AC & DC Circuits Review
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