Flashcards
Introduction to Circuit Components: Inductors (Mod.4 Sect.2 Part 2) 2 of 2
Cards in this deck (11)
- 1An _____ stores a charge as a magnetic field surrounding the conductor.inductor
- 2If 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) - 3Inductors are rated using the unit of measure called the _____.henry (H)
- 4High-frequency air-, plastic-, or ceramic-core inductors have little inductance and are rated in ______ or ______.millihenries, microhenries
- 5The 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
- 6To find the total inductance of two or more inductors connected in _____, add all the values of the inductors together.series
- 7A resistor can be connected in series with an inductor to create a __________ circuit (___ circuit).resistance-inductance, RL
- 8When 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
- 9Inductors are widely used as _____ components in industrial DC power supplies.filtering
- 10A high-frequency inductor can be made by placing a _____ bead over a straight conductor.ferrite
- 11A ______ inductor is used in a DC or low-frequency circuit.iron core