How can electricity make magnetic fields?, Physics

Assignment Help:

How can electricity make magnetic fields?

In 1820, Oersted discovered that an electric current can produce a magnetic field. He happened to notice a compass move when he connected a battery to a circuit. Anytime an electric charge moves, it creates an associated magnetic field.

182_How can electricity make magnetic fields 1.png

This is when we introduce the "dreaded" right-hand rule. Correctly executing this maneuver will help you determine the direction of a magnetic field associated with an electric current. Please be sure to set your pencil down and make sure you use your right hand, because even if you only mistakenly use your left hand, you will get the wrong direction! If you point the thumb of your right hand in the direction of positive current (which is opposite the direction of the electron current), the fingers of your right hand will naturally wrap in the direction of the magnetic field reaching out in circles perpendicular to the wire.

1447_How can electricity make magnetic fields 2.png

If we wrap a wire carrying current into a loop, we have the same magnetic field that would appear around an ordinary bar magnet. Another version of the dreaded right hand rule helps us identify the north pole of a solenoid which is just a stack of these loops. If you wrap the fingers of your right hand in the direction of the current in the solenoid, your thumb points in the direction of the north pole of your "electromagnet". If the current is turned off, the magnetic field disappears. If the current is turned on, the magnetic field will appear again.

221_How can electricity make magnetic fields 3.png


Related Discussions:- How can electricity make magnetic fields?

Logic gates, i need a project report on logic gates urgently

i need a project report on logic gates urgently

Generate a gaussian random signal vector, Generate and plot a sampled sine ...

Generate and plot a sampled sine wave with f s =8kHz, of 4 seconds duration, with frequency ω 0 = Π/10 and amplitude A = 1 . 2. The waveform equation is x ( n )   =   A s

What is binding energy (b.e.), The neutrons and protons in a stable nucleus...

The neutrons and protons in a stable nucleus are held together by nuclear forces and energy is required to pull them infinitely apart (or the similar energy is released during the

Determine the maximum power output, A mass flow of 10kg/s of water vapor ...

A mass flow of 10kg/s of water vapor at 30bar and 500 0 C flows steadily through the inlet an insulated turbine. The pressure of the water is reduced to 1bar at the turbi

Uses of ultrasonics, Uses of Ultrasonics: 1. Ultrasonic are used in dia...

Uses of Ultrasonics: 1. Ultrasonic are used in diagnosis of disease, physical therapy as surgical tool & industry. 2. They are used in sounding devices to calculate the dept

Determine the tension on the nail, A block is placed under the head of the ...

A block is placed under the head of the claw hammer to aid in removing the nail.  The pull on the handle is P39 N, the angle of the hammer to the vertical is P40 and the length of

Periodic and non periodic, how are digital signal are periodic and non peri...

how are digital signal are periodic and non periodic signal

Ceramics, propeties of ceramics

propeties of ceramics

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd