Does the path of the current induced to flow in the coil, Physics

Assignment Help:

A bar magnet is overhanging vertically above a closed coil of wire. The bar magnet is unconfined. It remainder vertical as it come near the coil falls straight through the coil and then continues to fall downward, away from the coil. Does the path of the current induced to flow in the coil as a result of the motion of the magnet reverse itself as the magnet passes through the coil?

Answer:

Presume the bar magnet is initially suspended north end down. After that the magnetic field is downward inside, above and below the magnet. The magnetic field is strongest in the magnet and weaker above and below the magnet but everywhere downward. The numerous downward-directed magnetic field lines through the loop thus increases as the magnet approaches the coil is a maximum when the magnet is in the coil and decreases as the magnet falls away from the coil. For the reason that the magnetic field lines are always downward but the change in the number of downward-directed field-lines through-the-coil that is occurring itself changes from increasing to decreasing the current induced (in accordance with Faraday's Law) must reverse its direction in order for the magnetic field produced by the induced current to reverse as by Lenz's Law it should to always be in that direction which tends to keep the number of magnetic field lines downward through the coil from changing.

Now presume that the magnet is initially suspended north end up. After that the magnetic field is downward above inside and below the magnet. The argument above still putting but with the word downward replaced by the word upward everywhere that it occurs.

Note that in moreover case the direction of the current does indeed reverse itself.


Related Discussions:- Does the path of the current induced to flow in the coil

Force, explain with the aid of a diagram what is meant by the moment of a f...

explain with the aid of a diagram what is meant by the moment of a force about point

Illustrate the reflection of waves at closed and open ends, Write down the ...

Write down the condition for the construction of good auditoria. Illustrate the reflection of waves at closed and open ends.

What are nodes in standing waves, The points where amplitude is minimized a...

The points where amplitude is minimized are called as nodes.

Brass, Brass: When copper is alloyed zinc (60% copper, 40% zinc) is called...

Brass: When copper is alloyed zinc (60% copper, 40% zinc) is called brass. It is widely used as a current carrying and structural material in switches and plugs etc. Propertie

Fraunhofer and fresnel diffraction, Differentiate between Fraunhofer's and ...

Differentiate between Fraunhofer's and Fresnel's type of diffraction?

Constraint relation : wedge and block, A block goes on a wedge which in tu...

A block goes on a wedge which in turns goes on a horizontal table, as given in figure. The wedge angle is Φ. As long as the wedge is in met with table, we have the trivial const

Pv diagram, is always del U o in cyclic process

is always del U o in cyclic process

The wheatstone bridge, The wheatstone bridge: You have already solved r...

The wheatstone bridge: You have already solved resistor networks using Ohm's law and Kirchoff's laws.  In this unit we are going to look at a special arrangement of series and

Are there many type of single ends in optics fiber, Are there many type of ...

Are there many type of single ends? Single ends can be no matter which from a simple cut with snips or a cutter to a sophisticated polished encapsulation. The actual method use

Measure the electric flux density, Two parallel rectangular plates measurin...

Two parallel rectangular plates measuring 20 cm by 40 cm carry an electric charge of 0.2µC. Measure the electric flux density. If the plates are spaced 5mm apart and the vo

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