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Lecture Notes for ES A309 - Elements of Electrical Engineering with Miller at University of Alaska - Anchorage (UAA)

Notes Information

Material Type:Class Note
Professor:Miller
Class:ES A309 - Elements of Electrical Engineering
Subject:Engineering Science
University:University of Alaska - Anchorage
Term:Fall 2007
Keywords:
  • Displacement
  • Capacitance
  • Following Figure
  • Short Circuit
  • Engineering
  • Voltage Drop
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1 ES309 Elements of Electrical Engineering Lecture #13 Jeffrey Miller, Ph.D. Outline . Chapter 6.1-6.2 Inductors . An electrical component that opposes any change in electrical current . Composed of a coil of wire wound around a supporting core whose material may be magnetic or non-magnetic . A time-varying magnetic field induces a voltage in any conductor linked by the field . Inductance - Relates the induced voltage to the current Inductors . Inductance is the circuit parameter used to describe an inductor . The letter L is used for inductance, measured in henrys (H) - henry=> Wb/A => V * s / A 2 Inductors v = L di/dt where v is in volts, L in henrys, i in amps, and t in seconds If the current is in the opposite direction of the voltage drop across the inductor, the equation will be negated Inductors . Looking at the equation v = L di/dt . If the current is constant . . . - The voltage across the inductor is 0 - So the inductor behaves as a short-circuit in the ...
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