BlogNCERTThe Magnetic Dipole Moment of a Revolving Electron

The Magnetic Dipole Moment of a Revolving Electron


The magnetic dipole moment of a revolving electron: A charged particle’s magnetic moment can be created in two ways. According to Ampère’s circuital equation, a moving electric charge makes a current, thus the orbital movement of an electron around the nucleus yields a magnetic moment. Second, the electron’s inherent rotation, or spin, has a spin magnetic moment. A natural unit for the orbital angular momentum of an electron was represented by ħ in Bohr’s atomic models. The magnetic dipole moment of an electron orbiting an atom with so much angular momentum is measured in Bohr magnetons. This is the ground state, or the state with the least amount of energy, according to the Bohr model.

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    A brief outline:

    A magnetic moment is a measurement of a magnet’s magnetic strength and orientation, as well as any other item that produces a magnetic field. A magnetic moment is more properly referred to as a magnetic dipole moment, which is the component of the magnetic moment that can be depicted by a magnetic dipole. A magnetic dipole is comprised of two magnetic north poles divided by a little distance.

    The measurements of magnetic dipole moments are today’s time’s area or energy split by magnetic flux density. Ampere-square meter is the metric for dipole moment in meter–kilogram–second–ampere. The erg (unit of energy) per gauss is the unit in the centimeter–gram–second electromagnetic system (unit of magnetic flux density). One ampere-square meter equals 1,000 ergs per gauss.

    The torque that an object or thing experiences in a magnetic field can easily be expressed as the magnetic dipole moment of that object or thing. On objects with larger magnetic moments, the very same applied magnetic field induces larger torques. The direction and intensity of this torque are determined not only by the magnetic moment’s degree but also by its placement in relation to the magnetic field’s direction. As a result, the magnetic moment can be thought of as a vector.

    Important concepts:

    Magnetic dipole formula:

    The Magnetic dipole moment is a vector that relates the orienting torque on an item subjected to an external magnetic field towards the field vector directly. The formula for the link is tau=mB. The dipole’s torque is Tau, the external magnetic field is B, and the magnetic moment is m.

    When the size of a closed system of electric current or a pair of poles is reduced to zero whereas the magnetic moment is kept static, the result is a magnetic dipole. Although it isn’t a perfect match, it is a magnetic analog of the electric dipole. In nature, there has never been an actual magnetic monopole, which would be the magnetic equal of an electric charge.

    Magnetic monopole quasiparticles, on either hand, have just been found as emergent properties in a spectrum of condensed matter systems. One sort of magnetic dipole moment is also linked to a core quantum property: elementary particle spin.

    Magnetic dipole moments have dimensions equal to present times area or energy divided by magnetic flux density. The ampere-square metre is the specific unit for dipole moment as in meter–kilogram–second–ampere and SI systems.

    In the centimeter–gram–second electromagnetic system, the erg (unit of energy) per gauss is the unit of measurement (unit of magnetic flux density). 1,000 ergs per gauss = one ampere-square metre. The Bohr magneton (equivalent to 9.27×10-24 ampere–square metre) is a convenient unit for measuring electron magnetic dipole moments.

    The magnetic dipole’s underlying theory:

    Any magnet’s field (magnetic) can be represented by a series of terms, each of which is more sophisticated (with finer angular characteristics) than the one before it. The monopole (defined as an isolated magnetic south or north pole), dipole (defined as two equal and opposite magnetic poles), and quadrupole (defined as three equal and opposing magnetic poles) are the first three terms in that series.

    The degree of the magnetic field for each phrase decreases increasingly faster with distance than the previous term until the first non-zero term governs for large enough distances.

    The magnetic dipole moment is the first non-zero word for multiple magnets. A magnetic dipole is the dividing line of a current loop or a pair of poles when the source’s dimensions are reduced to zero while the moment remains constant. These constraints are the same as long because they only apply to fields far off the sources. The interior field, however, is predicted differently by the two models.

    When a magnetic system (such as a bar magnet or dipole) is positioned in a magnetic field, the magnetic moment is the product of the distance among its poles and the power of either pole for a magnet. The magnetic dipole moment, also known as the intensity of a magnetic dipole, is a measurement of a dipole’s ability to align itself with a specific external magnetic field. The highest amount of torque given to the dipole, which happens when the dipole is at right angles to a magnetic field, determines the size of the dipole moment in a uniform magnetic field.

    Significance of magnetic dipole moment of a revolving electron in NEET exam:

    The magnetic dipole moment NEET conversations are expected to disclose and give replies to the most often posed inquiries on the test. With the assistance of notes from proficient researchers in the field, which is given on the Infinity Learn online stage, these can be clarified in basic terms. Assuming that understudies take care of an intensive appreciation of the subjects all through the educational program, different decision questions are obvious to rehearse.

    Specialists and skilled educators in the subject give responses. The responses are as per CBSE and NCERT rules for the NEET test, helping understudies in accomplishing higher outcomes. The courses are sensibly estimated, and there are a few free courses accessible for new understudies to try out. On a similar stage, there is a different selection of courses going from kindergarten to twelfth grade, as well as specific projects for cutthroat tests like NEET.

    Also read: Magnetic field lines

    FAQs (Frequently asked questions):

    Question 1: What is the conduct of an iota as an attractive dipole?

    Answer: In a particle, electrons are in a restricted circle around the core. Since electrons are charged particles, their circle around the core is like a current circle. The electrons turn in an anticlockwise heading, while the current twists in a clockwise bearing. The relocation of electrons brings about the development of a south pole and a north pole, making the particle act like an attractive dipole.

    Question 2: What is a Current Loop’s Magnetic Dipole Moment?

    Answer: The extent of m is the attractive dipole snapshot of a current circle have I with region A: m = IA

    The attractive dipole second has a course that is opposite to the outer layer of the current circle.

    Question 3: What is referred to as magnetic dipole moment?

    Answer: The object of interest in NMR (nuclear magnetic resonance) is usually a molecule, atom, nucleus, or subatomic entity. The magnetic dipole moment refers to the object’s intrinsic magnetic properties, which are frequently depicted as originating from a miniature bar magnet featuring north and south poles (the “dipoles”).


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