My Math Forum  

Go Back   My Math Forum > Science Forums > Physics

Physics Physics Forum


Reply
 
LinkBack Thread Tools Display Modes
March 7th, 2011, 04:31 AM   #1
Senior Member
 
Joined: Oct 2009

Posts: 895
Thanks: 1

How can a changing magnetic field induce an electric current

Hi all,

How can changing magnetic field to induce an electric current ?

Can you give me Faraday’s law, in simple words ?
r-soy is offline  
 
March 7th, 2011, 09:14 AM   #2
Senior Member
 
MarkFL's Avatar
 
Joined: Jul 2010
From: St. Augustine, FL., U.S.A.'s oldest city

Posts: 12,155
Thanks: 466

Math Focus: Calculus/ODEs
Re: How can changing magnetic field to induce an electric cu

Faraday's law of induction states:

Quote:
The emf induced in a circuit is directly proportional to the time rate of change of magnetic flux through the circuit.
This statement can be written:



where is the magnetic flux threading the circuit which can be expressed as:



This integral is taken over the area bounded by the circuit. The meaning of the negative sign in the equation for is a consequence of Lenz's law.
MarkFL is offline  
Reply

  My Math Forum > Science Forums > Physics

Tags
changing, current, electric, field, induce, magnetic



Thread Tools
Display Modes


Similar Threads
Thread Thread Starter Forum Replies Last Post
a little help with electric field lines ibungo Calculus 3 March 4th, 2013 07:16 PM
Probability of flow of electric current. KamilJ Probability and Statistics 1 June 4th, 2011 04:31 PM
Compare the magnetic field strength inside & outside the so r-soy Physics 1 February 18th, 2011 11:59 AM
elementary electric field. supermikong Calculus 0 August 15th, 2010 11:40 PM
Electric Field johnny Physics 2 May 1st, 2008 01:48 PM





Copyright © 2018 My Math Forum. All rights reserved.