Electromagnetism, Physics

Assignment Help:

Electromagnetism:

222_Electromagnetism.png

If a straight wire carrying a current is formed into a circular loop, the magnetic field is as shown. The field may be deduced by taking elements of the loop and looking at the field around each part of the loop. 

PRODUCTION OF A BAR MAGNET

If a length of wire is bent into a series of loops, it forms a solenoid. The direction of the magnetic field around any small part of it can be obtained by using the corkscrew rule. If the fields for a series of such loops are combined, the result will be a field pattern similar to that of a bar magnet.
1998_Electromagnetism1.png

END RULE

2431_Electromagnetism2.png

The direction of the magnetic field depends upon the direction of conventional current flow. We can find out which end of the coil is acting as the north pole and which is the south pole by observing the direction of current flow at each end. This is called the End Rule or sometimes, the clock rule, see diagram below.

RIGHT HAND GRIPPING RULE

The right hand gripping rule can also be used to determine the north pole of a coil. The coil is gripped by the right hand with the fingers pointing along the conductors in the direction of conventional current flow, when the thumb is then extended, it indicates the end of the coil that has a magnetic north polarity.



Related Discussions:- Electromagnetism

Draw the energy band diagrams of a tunnel diode, Draw the energy band diagr...

Draw the energy band diagrams of a tunnel diode for different biasing conditions. Band  Diagrams  of  a  Tunnel  diode:   The  energy  band  diagram  for  a  heavily  doped unb

Hall effect, Hall effect: While charged particles pass through a tube ...

Hall effect: While charged particles pass through a tube that has both an electric field & a magnetic field (perpendicular to the electric field) exist in it, only certain vel

Difference between optical diffraction and interference, Give at least two ...

Give at least two differences between optical diffraction and optical interference phenomena.

Polarisation, How can we ger plane polarised light??

How can we ger plane polarised light??

Besides solid, Besides solid, liquid, and gas, what is the fourth form of m...

Besides solid, liquid, and gas, what is the fourth form of matter? Ans: The fourth form of matter is plasma.

Describe air traffic collision in details, Describe Air Traffic Collision i...

Describe Air Traffic Collision in details -The air track is also used to study of collisions, both elastic & inelastic. Since there is very minimum amount of energy lost through f

Explain about the coriolis effect, The Coriolis effect is a deflection of m...

The Coriolis effect is a deflection of moving objects when they are reflects in a rotating reference frame. In a reference frame with clockwise rotation, the deflection is to the l

Displacement and distance, Displacement and Distance A simple animation...

Displacement and Distance A simple animation showing the difference among the distance and the displacement Distance and displacement are two quantities which may seem to mean

Tension in a string, two blocks of mass 2kg and 4 kg are held together by a...

two blocks of mass 2kg and 4 kg are held together by a string force of 10N is applied on 2kg and 20N on 4kg find the tension in the string connected between two blocks

Calculate the frequency of the tuning fork, The end of a pipe is inserted i...

The end of a pipe is inserted into water.  A tuning fork is held over the pipe. If the pipe resonates at lengths of 15 cm and 35 cm, what is the frequency of the tuning for

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