lecture22

lecture22 - Time constant is L/R. EM oscillations An LC...

This preview shows pages 1–4. Sign up to view the full content.

Physics 2102 Exam review Inductors, EM oscillations Physics 2102 Gabriela González

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Exam review Q1: 75.7 P1: 61.6 Q2: 67.2 Q3: 79.2 P2: 58.2 P3:52.2
Inductors Inductance definition: L=N ΦΒ / I Solenoid inductance: L= μ 0 n 2 Al Induced emf (voltage) across an inductor is E= - L d i /dt In an RL circuit, we can “charge” the inductor with a battery until there is a constant current, or “discharge” the inductor through the resistor.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Time constant is L/R. EM oscillations An LC combination produces an electrical oscillator, the natural frequency of oscillator is =1/LC Total energy in circuit is conserved: switches between energy stored in capacitor (electric energy) and in inductor (magnetic energy). If a resistor is included in the circuit, the total energy decays (is dissipated by R). i(t)...
View Full Document

This note was uploaded on 11/18/2011 for the course PHYSICS 2102 taught by Professor Dowling during the Fall '10 term at LSU.

Page1 / 4

lecture22 - Time constant is L/R. EM oscillations An LC...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online