Find the force of attraction between two magnetic dipoles a distance r apart. The dipoles are oriented so that the north pole of the first dipole faces the south pole of the second.
Let us assume north pole of first dipole is towards direction, therefore,
Taking dot product and then finding gradient we get,
Since second magnetic dipole is in the axial point of the first magnetic dipole,
Therefore force of attraction of m1 on m2 is given by,
Find the force of attraction between two magnetic dipoles a distance r apart. The dipoles are...
Calculate the force between two magnetic dipoles with r spacing in the same direction.
Arrange two electric dipoles with dipole moments qd nose to tail at distance r (r ) d) along a line including their axis. Use Coulomb’s law to show that the force between them varies as r4. 4. Arrange two electric dipoles with dipole moments qd nose to tail at distance r (r »d) along a line including their axis. Use Coulomb's law to show that the force between them varies as 1r
MAGNETIZATION ED 13 I. Magnetic dipoles No magnetic monopoles have thus far been observed, so the most basic source of magnetic fields is a magnetic dipole. A. The current loop shown at right is a simple example of a magnetic dipole. 1. On the diagram, sketch the magnetic field produced by this loop. How does the direction of the field at the center of the loop compare to the direction of the field above and below the loop? To the...
Two masses, m1 and m2 are separated by a distance, r. The force of attraction between the two masses is F. If the original force is 20N and both masses quadruple while the r decreases to ¼ of the original distance: A) how much would F change? B) what will be the new force?
Two identical objects of mass m are a distance R apart and feel a gravitational force of attraction of F. If the distance increases to 5R, what will be the force between the two objects? Select one: a. F/5 b. F/25 c. F d. 25F e. 5F
1. Looking at the force on a magnetic dipoles, there are two models which yield slightly different results a. The force on an electric dipole is F (p. V)Ë because it's made Z of two electric monopole charges. If magnetic dipoles were actually made of Magnetic monopoles (like in the Gilbert model) we would expect F (m V)B, which doesn't experimentally seem to match observations, but derive this equation from the Taylor series: у B(F)B(F)[- ") VB(") d Assume that...
Find the force of gravitational attraction between a proton and electron (1 M apart) How much stronger is the electric force?
No referring, thanks.The force on a wire is a maximum of 4.50×10−2 N when placed between the pole faces of a magnet. The current flows horizontally to the right and the magnetic field is vertical. The wire is observed to "jump" toward the observer when the current is turned on.A) What type of magnetic pole is the top pole face? 1. South pole 2. North poleB) If the pole faces have a diameter of 14.0 cm , estimate the current...
The exchange coupling as being responsible for ferromagnetism is not the mutual magnetic interaction between two elementary magnetic dipoles. To show this, calculate (a) the magnitude of the magnetic field a distance of 9.7 nm away, along a dipole axis, from an atom with magnetic dipole moment 2.0 × 10-23 J/T, and (b) the minimum energy required to turn a second identical dipole end for end in this field.
If an electric force is a force of attraction or repulsion between charged particles and magnetic force is a force of attraction between magnetized materials. What is the difference between magnetic force and electromagnetic force? How come electromagnetic force stick atoms together? Why do atoms have electromagnetic force?