Introduction to Circuit Components: Inductors (Mod.4 Sect.2 Part 2) 2 of 2

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Question Answer
An _____ stores a charge as a magnetic field surrounding the conductor. inductor
If the strength of current flowing in a conductor changes, the strength of the magnetic field also changes. When a change in current occurs, the magnetic field generates a voltage in the conductor that's called ______________. self induced electromotive force (self induced EMF)
Inductors are rated using the unit of measure called the _____. henry (H)
High-frequency air-, plastic-, or ceramic-core inductors have little inductance and are rated in ______ or ______. millihenries, microhenries
The 3 factors that can influence the inductance value of a coil are: the number of ____ in a coil, the _____ of the coil, and the _____ that the coil is made of. turns, shape, material
To find the total inductance of two or more inductors connected in _____, add all the values of the inductors together. series
A resistor can be connected in series with an inductor to create a __________ circuit (___ circuit). resistance-inductance, RL
When voltage is applied to an RL circuit, the current flow won't reach its max. value immediately. This is because the inductor tends to oppose a change in current flow in a circuit. Instead, the current will build up over time until it reaches its ________ value. steady state
Inductors are widely used as _____ components in industrial DC power supplies. filtering
A high-frequency inductor can be made by placing a _____ bead over a straight conductor. ferrite
A ______ inductor is used in a DC or low-frequency circuit. iron core
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