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Electromagnetic field


An electromagnetic field (also EM field) is a physical field produced by electrically charged ... The electric field is produced by stationary charges, and the magnetic field by ..... case of a stat...

Electric fields and magnetic fields are both present near a charged ...


false ... Electric fields and magnetic fields are both present near a charged atom? Electric fields and ... What is an electric field get as you get closer to a charge?

Confusion between Electric field and Magnetic field of a charged ...


Oct 18, 2011 ... Now, when a current is flowing in a conductor (I'm not sure what happens if the motion is not ... Are there both electric field & magnetic field?

Magnetic Field and Magnetic Forces - UCF Physics


1) A moving charge or collection of moving charges (e.g. electric current) ... 2) A second current or charge responds to the magnetic field and ... a magnet near a conducting loop can ... atoms. - Inside a magnetized body (permanent magnet) there is a ... If charged particle moves in region where both, E and B are present:.

Solution - MIT

web.mit.edu/8.02t/www/materials/ExamPrep/exam2/Exam 2_Practice_Problems_Part 2_Solutions.pdf

(b) Is it possible for a constant magnetic field to alter the speed of a charged particle? ... current loop feels no torque, try a different orientation—the torque is zero if the field ... Both can accelerate a charged particle moving through the field. ... electric field, but the direction of the magnetic force is perpendicular to the ...

The Magnetic Field


However, a completely different field, both qualitatively ... moving charged particles create magnetic fields, and all moving charged ... The simplest answer is that the electrons in “orbit” in each of the atoms of the material create ... The simplest source of magnetic field is electric current flowing through a long, straight wire.

About Electromagnetism - Trifield


Magnetic and electric fields exist nearly everywhere, and the following is a brief ... If a proton (or other positive-charged body) is placed near these two charged objects, the ... In metals these particles are the electrons from the outer part of the atom. ... The magnetic force can cause two parallel wires to attract if they are both...

Can magnetic field exist without electric field? | Physics Forums ...


Aug 10, 2014 ... I understand that electric field can exist without any magnetic field, ... they are generated by varying electric field or moving charge. .... All matter is made of atoms and atoms have electrically charged .... If the magnetic field is generated by a current, it is possible that the electric field is zero or very close...

Introduction to Magnetism and Induced Currents


A current traveling through a loop of wire creates a magnetic field along the axis of the loop. ... Electrons appeared to exhibit two types of motion in an atom: orbital and spin. ... Any charged object in an electric field experiences an electric force. ... Magnetic fields permeate space and are strongest near a permanent magnet ...

Q: What is a magnetic field? | Ask a Mathematician / Ask a Physicist


Nov 3, 2010 ... A current (even a single moving charge) produces a field that wraps around it's ... This electric repulsion is always greater than the magnetic attraction, so the ... The end result is that every particle in both wires sees the other wire as .... no magnetic force on a stationary charge next to a current carrying wir...

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Magnetic Fields - APlusPhysics


In very basic terms, strong permanent magnets have many atoms with electrons ... Question: Which type of field is present near a moving electric charge? ... If you split a magnet in half, each half of the original magnet exhibits both a north and ...

Physics4Kids.com: Electricity & Magnetism: Magnetic Fields


Although both types of fields are interconnected, they do different things. ... The fields affect neighboring objects along things called magnetic field lines. ... He discovered that magnetic fields are produced by moving charges (current). ... Two wires, with current flowing, when placed next to each other, may attract or repel like ...

What is Magnetism? | Magnetic Fields & Magnetic Force - Live Science


Jul 28, 2015 ... Magnetic fields are generated by rotating electric charges, according to HyperPhysics. ... an external magnetic field or electric current, it produces a permanent magnet. ... floating atop water, it was repelled by both poles of the magnet. ... the magnetic fields of atoms or molecules align next to each other; and  ...