SelfInductance

SelfInductance - SELF-INDUCTANCE Consider the following...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
SELF-INDUCTANCE Consider the following circuit: A. When the switch is closed the current does not reach its max value of I = ε/R instantaneously. Faraday’s Law can be used to explain why this occurs. B. When the switch is closed the current increases and the magnetic flux throught the circuit increases. C. This increase in flux induces an EMF such that it would cause an induced current that would oppose the increase in flux through the circuit. D. Such induced EMF would have to be opposite to ε. E. The result is a gradual increase of the current rather than an instantaneous increase. F. This effect is called self-induction because the self-induced EMF arises from the circuit itself. ε L = self-induced EMF (back - emf) The flux through the loop is proportional to the current in the loop:
Background image of page 1

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

View Full DocumentRight Arrow Icon
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 09/02/2011 for the course PHYS 4B taught by Professor Luna during the Spring '11 term at DeAnza College.

Page1 / 2

SelfInductance - SELF-INDUCTANCE Consider the following...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online