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

Compare the resistances, Two resistances have lengths in the ratio 1:4 and ...

Two resistances have lengths in the ratio 1:4 and radius 1:2,specific resistances in ratio 3:1. compare their resistances. Solution) Given lengths l1=1                          l

Antimatter in observable universe, Why is there far more matter than antima...

Why is there far more matter than antimatter in the observable universe? Ans) It may have to do with the way the universe was created. Certainly if there was a lot of antimatter c

What do we mean by the expression linear charge density, Que: In the ci...

Que: In the circumstances of charge distributed on a line segment what do we mean by the expression linear charge density λ(x)? Note that λ(x) is to be study lambda of x mea

Simple harmonic motion, what are the necessary conditions for a body to exe...

what are the necessary conditions for a body to execute simple harmonic motion?

Write down the maxwells electromagnetic equation, Write down the Maxwell's ...

Write down the Maxwell's electromagnetic equation in differential form in a medium, in the presence of currents and charges. Identify and state the laws of electromagnetism with wh

What is the average acceleration of the door, A 15.2-kg police battering ra...

A 15.2-kg police battering ram exerts an average force of 125 N on a 10.0-kg door. a. What is the average acceleration of the door? b. What is the average acceleration of th

Length contraction (relativity of length), Length contraction (relativity o...

Length contraction (relativity of length) is the length of a body moving with a relativistic velocity v = c relative to an observer is contracted by a factor in the direction of m

Define hole in wall (princeton), Define Hole in Wall (Princeton)? A con...

Define Hole in Wall (Princeton)? A container is separated into two parts I and II by a partition with a small hole of diameter d Helium gas in the two parts is held at temper

Motion, An athlete run a certain distance before taking a long jump. Why?

An athlete run a certain distance before taking a long jump. Why?

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