Результаты поиска по запросу "magnetic field equation bar magnet":

  1. Magnets and Electromagnets | Bar Magnet and Solenoid

    • Bar Magnet. The lines of magnetic field from a bar magnet form closed lines. By convention, the field direction is taken to be outward from the North pole and in to the South pole of the magnet.


  2. (A) “Magnetic pendulum”: a bar magnet swings in magnetic Field As shown in Figure

    • 1, when a bar magnet is placed in a magnetic field B, the net magnetic force on the bar magnet is zero.
    • Using Equation (5), we can first determine the parameter Iinertial of the bar magnet by m.


  3. Magnetic field - Wikipedia

    • The direction of magnetic field lines represented by the alignment of iron filings sprinkled on paper placed above a bar magnet.
    • In a modified form that accounts for time varying electric fields, Ampère's law is one of four Maxwell's equations that describe electricity and magnetism.


  4. magnetic field equation bar magnet

    • shoe-shaped magnets and bar magnets. ... Permanent magnets are used for the magnetic field necessary in ..... This equation (справедливо) for resistors.


  5. Example 20-1 Changing Magnetic Flux I: A Sliding Bar in a Magnetic Field

    • A uniform magnetic field of magnitude B is directed perpen-dicular to the plane of the bar and rails.
    • instead using Equation 20-2. While the mag-netic field doesn’t change, the area of the loop. Magnetic flux


  6. Magnetism: fields and forces | Figure 6.1 Magnetic field of a bar magnet

    • Figure 6.3 Field patterns for pairs of bar magnets. E6: Magnetism - Fields and Forces.
    • From equation 6.1 we can see that the SI unit of magnetic field strength is the newton per ampere per metre (N.A.-1.m-1) which is given the special name tesla (symbol T).


  7. electromagnetism - Magnetic field lines - Physics Stack Exchange

    • Place a magnetic compass somewhere in a magnetic field (say, a bar magnet like the one below). The needle would align tangentially to the magnetic lines of force.
    • As this guy at Physics Forum has explained, the equation for a magnetic field line (in polar co-ordinates) in 2 dimensions is given by...


  8. Earth’s Magnetic Field

    • Magnetic field lines form closed loops, unlike electric field lines. FIGURE 20–4 (a) Visualizing magnetic field lines around a bar magnet, using iron filings and compass needles.
    • This equation gives the magnitude of the force exerted by a magnetic field on a.


  9. Interaction of Magnetic Dipoles in External Fields

    • The field is equivalent to that from a tiny bar magnet (a magnetic dipole). We define the magnetic dipole moment to be a vector pointing out of the plane of the. current loop and with a magnitude equal to the product of the current and loop area: μK.


  10. Magnetic field plotting

    • Compass needles and bar magnets which are free to rotate are observed to orient themselves along magnetic field lines.
    • Since each component field of equation (2) is given by equation (1), and since the two poles of any bar magnet are of equal strength, it follows that the ratio of BN to BS should...