Class 12 Magnetism - Gauss Law Definition || Solved Examples
As you know that the science is filled with fun facts. The deeper one dives into the concepts of science and its related fields, the greater amount of knowledge and information there is to learn in there. One such topic of study is the Gauss Law, which studies electric Charge along with a surface and the topic of Electric Flux. Let us study about the Gauss Law definition , Formula, Solved Examples in this Article,. Gauss’s law states that the net flux of an Electric Field in a closed surface is ...
Read More →Potential Energy of Magnetic Dipole in Magnetic Field || Magnetism Class 12 Physics Notes
Potential Energy of magnetic dipole in a magnetic field is defined as the amount of work done in rotating the dipole from zero potential energy position to any desired position. A current loop does not experience a net force in a magnetic field. It, however, experiences a torque. This is very similar to the behavior of an electric dipole in an electric field. A current loop, therefore, behaves like a magnetic dipole. India's Best Exam Preparation for Class 12th - Download Now Potential Energy of...
Read More →Torque on a Bar Magnet in a Magnetic Field || Class 12 Physics Notes
Here we will study about the Torque on a Bar Magnet in a Magnetic Field and Important Points related to it. When a bar magnet is placed in a uniform magnetic field the two poles experience a force. The forces are equal in magnitude and opposite in direction and do not have same line of action. They constitute a couple of forces which produces a torque. The torque tries to rotate the magnet so as to align it parallel to direction of field. Net force on bar magnet = $mB \hat{ i }+ mB (-\hat{ i })=...
Read More →Magnetic Field due to a Short Bar Magnet | Magnetic Dipole - Class 12 physics Notes
The magnetic field due to a short bar magnet at any point on the axial line is twice the magnetic field at a point on the equatorial line of that magnet at the same distance. S.l. unit of torque acting on the bar magnet is Nm. Magnetic field due to a short bar magnet (magnetic dipole) : On Axial Point or End on Position On Equatorial Point or Broadside Position At An Arbitrary Point On Axial Point or End on Position The magnetic field $\overrightarrow{ B }_{\text {axial }}$ at a point P due to b...
Read More →Mind Maps for Rotational Motion: CRTM Revision - Class XI, JEE, NEET
Rotational Motion Class 11 comprises variety of cases with important formulae and key points. So here is the mind map to help you in remembering all the key formulae and important concepts on finger tips. Download...
Read More →Sample Papers Class 12 CBSE 2020 || All Subjects - Download PDF
CBSE Sample Papers for March 2020 Exams has been recently released by the Central Board of Secondary Education. Sample Papers Class 12 CBSE 2020 are given to download in PDF form. CBSE Class 12 Marking Scheme 2020 for these Sample Papers is also available in this article for download in PDF format. These CBSE Sample Papers 2020 are based on updated format of CBSE Class 12 Question Papers and are very important for the preparation of upcoming CBSE Board Exam 2020. Sample Papers Marking Scheme SUB...
Read More →JEE Advanced Previous Year Question Papers - Download PDF
If you want to get a good rank in JEE Advanced then it is very important for you to solve JEE Advanced previous year question Papers. When you solve previous year question papers of JEE Advanced then you will get the idea about the Important Topics, Exam pattern, and many different things that are important to know before writing the Actual JEE Advanced Exam. Aspirants who are willing to clear Joint Entrance Examination JEE have to solve Previous Year question Paper of Both JEE Main Advanced. He...
Read More →Detailed Syllabus of JEE Advanced 2020
IIT Delhi has released the detailed syllabus of JEE Advanced 2020 along with the official notification. JEE Advanced 2020 syllabus will be highly beneficial for candidates who are preparing for the upcoming entrance examination. This is because the detailed JEE Advanced syllabus will help candidates to ensure that they are not missing any important topic to cover. JEE Advanced 2020 syllabus consists of sections with their detailed topics for Physics, Chemistry, and Mathematics. JEE Advanced will...
Read More →Mind Map For Aromatic Hydrocarbons [Arenes] for Class 11, JEE & NEET - Download from here
Get to learn all important points and reactions of Aromatic Hydrocarbons through these mind map. Download and share with your friends also. Download Mind Map 1 Download Mind Map 2...
Read More →Important Formulas of Mathematics Class 10 | NCERT Chapter 11-15 | Download Mind Map
Mind Map covering Important Formulas of Maths Class 10 will help you to learn all the important and key formulae on Fingertips. The given Mind Map covering Following Chapters from Class 10 NCERT: - Constructions - Area Related to Circles - Surface Area and Volumes - Statistics - Probability MIND MAP 1 Download Mind Map 1 MIND MAP 2 Download Mind Map 2...
Read More →Magnetic Field | Properties of Magnetic Lines of Force Class 12, JEE
Magnetic Field The space around a magnet (or a current-carrying conductor) in which its magnetic effect can be experienced. Magnetic Lines of Force can be defined as curved lines used to represent a magnetic field, drawn such that the number of lines relates to the magnetic field’s strength at a given point and the tangent of any curve at a particular point is along the direction of the magnetic force at that point. The Properties of Magnetic Lines of Force are also discussed. Magnetic Field: Ma...
Read More →Magnetic Dipole Moment Definition, Formulas & Solved Examples | Class 12, JEE & NEET
A magnetic moment is a quantity that represents the magnetic strength and orientation of a magnet or any other object that produces a magnetic field. More precisely, a magnetic moment refers to a magnetic dipole moment, the component of the magnetic moment that can be represented by a magnetic dipole. Know the Magnetic Dipole Moment Definition, Formulae, and solved examples here. Magnetic Dipole: An arrangement of two magnetic poles of equal and opposite strengths separated by a finite distance ...
Read More →Coulomb's law of Magnetism || Magnetism and Matter Class 12, JEE & NEET
Magnetism and Matter Class 12 Notes will help you in your Exam Preparation and will also help in scoring good! The property of any object by virtue of which it can attract a piece of iron or steel is called Magnetism. Here we will study about the Coulomb's Law in Magnetism, Magnetic Flux Density, and Pole Strength. Coulomb's Law in Magnetism Magnetic Flux Density Pole Strength Coulomb's Law in Magnetism If two magnetic poles of strengths ${{m_1}}$ and ${{m_2}}$ are kept at a distance r apart the...
Read More →ATOMIC THEORY OF MAGNETISM || Magnetism and Matter Class 12, JEE & NEET
Magnetism and Matter Class 12 Notes will help you in your Exam Preparation and will also help in scoring good! The property of any object by virtue of which it can attract a piece of iron or steel is called magnetism. Here will study about the Atomic Theory of Magnetism. Atomic Theory of Magnetism : Each atom behaves like a complete magnet having a north and south pole of equal strength. The electrons revolving around the nucleus in an atom are equivalent to small current loops which behave as a...
Read More →Properties of Bar Magnet || Magnetism and Matter Class 12, JEE & NEET
Playing with magnets is one of the first moments of science most children discover. That's because magnets are easy to use, safe, and fun. They're also quite surprising. Remember when you first discovered that two magnets could snap together and stick like glue? Remember the force when you held two magnets close and felt them either attract (pull toward one another) or repel (push away)? Here we will study about the Bar Magnet and Properties of Bar Magnet! Bar Magnet Bar Magnet Properties A bar ...
Read More →Magnetism and Matter Class 12 Notes - Introduction
Magnetism and Matter Class 12 Notes will help you in your Exam Preparation and will also help in scoring good! The property of any object by virtue of which it can attract a piece of iron or steel is called magnetism. Natural Magnet A natural magnet is an ore of iron (Fe3O4), which attracts small pieces of iron, cobalt and nickel towards it. Magnetite or lode stone is a natural magnet. Artificial Magnet A magnet which is prepared artificially is called an artificial magnet, e.g., a bar magnet, a...
Read More →Limitations of Cyclotron || Moving Charges and Magnetism Class 12, JEE & NEET
Here are some of the Limitations of Cyclotron listed below: When a charged particle is accelerated, its mass also starts increasing with increase in its speed. When its speed become comparable to that of light, the mass of the charged particle become quite large as compared to its rest mass. If $\mathrm{m}_{0}$ = rest mass, mass of charged particle moving with speed $v$ is $\quad m=\frac{m_{0}}{\sqrt{1-\frac{v^{2}}{c^{2}}}}$ Substituting for $\mathrm{m}$ in equation, we have time spent inside a ...
Read More →Construction and Working Principle of Cyclotron Class 12 Physics
We will study here about the Construction and Working Principle of Cyclotron Class 12 Working Principle of Cyclotron Construction of Cyclotron Cyclotron Introduction A cyclotron is used for accelerating positive ions so that they acquire energy large enough to carry out nuclear reactions. Cyclotron was designed by Lawrence and Livingstone in 1931. In a cyclotron, the positive ions cross again and again the same alternating (radio frequency) electric field. And gain the energy each time = q V. q ...
Read More →Cyclotron Working Principle, Applications & Frequency || Class 12 Physics Notes
The cyclotron frequency (or, equivalently, gyro-frequency) is the number of cycles a particle completes around its circular circuit every second. Cyclotron Frequency Under the action of the given magnetic field (B fixed), the given positive ion (e/m fixed) will cover the semi-circular path in a fixed time only, if t in equation is equal to $\frac{T}{2}$ Where T is the time period of the electric field. Maximum energy of the positive ions Maximum energy acquired by positive ions depends on the ra...
Read More →Force Between Two Parallel Current Carrying Conductors || Class 12 Physics Notes
It is an experimentally established fact that two current-carrying conductors attract each other when the current is in the same direction and repel each other when the currents are in opposite direction. Here we will study about Force Between Two Parallel Current Carrying Conductors as wire: Force Between Parallel Current-Carrying Wires Consider two long wires $W_{1}$ and $W_{2}$ kept parallel to each other and carrying currents $I_{1}$ and $\mathrm{I}_{2}$ respectively in the same direction. T...
Read More →Force on a Moving Charge in a Magnetic Field | Class 12 Physics Notes
Force on a Charged Particle in a Magnetic Field Difference in Force on a Charged Particle by Magnetic Field and Electric Field When a charged particle travels through a magnetic field, it experiences a force unlike any other that we're familiar with in everyday life. To illustrate the point, envision yourself walking down the sidewalk, when all of a sudden, a strong gust of wind hits you from the side. Now imagine that instead of moving sideways, you shoot straight up to the sky. Here we will st...
Read More →Motion of Charged Particle in Electric and Magnetic Field | Moving Charges and Magnetism Class 12, JEE & NEET
The motion of a charged particles in an electric and magnetic field (in the simultaneous presence of both ) has a variety of manifestations ranging from straight-line motion to the cycloid and other complex motion. Both electric and magnetic fields impart acceleration to the charged particle. But, there is a qualification for the magnetic field as acceleration due to magnetic field relates only to the change of direction of motion. The magnetic force being always normal to the velocity of the pa...
Read More →Motion of Charged Particle in a Magnetic Field | Moving Charges and Magnetism Class 12, JEE & NEET
When a charged particle moves along a magnetic field line into a region where the field becomes stronger, the particle experiences a force that reduces the component of velocity parallel to the field. This force slows the motion along the field line and here reverses it, forming a Magnetic Mirror. The motion of a charged particle in a magnetic field is characterized by the change in the direction of motion. It is expected also as the magnetic field is capable of only changing the direction of mo...
Read More →Torque on a Current loop in a Magnetic Field || Moving Charges and Magnetism - Class 12, JEE & NEET
Without torque, there would be no twists and turns, no spins! Wouldn’t life be boring that way? Torque gives a rotational motion to an object that would otherwise not be possible. So here we will study about Torque and Torque on a Current loop in a Magnetic Field in detailed derivation. Torque Experienced by a Current Loop in a Uniform Magnetic Field Let us consider a rectangular current loop PQRS of sides a and b suspended vertically in a uniform magnetic field. $\overrightarrow{\mathrm{B}}$. L...
Read More →Flemings Left Hand Rule Class 12 Physics - eSaral
Flemings Left Hand Rule Class 12 states that if we stretch the thumb, the forefinger, and the middle finger of our left hand such that they are mutually perpendicular to each other. If the forefinger gives the direction of current and the middle finger points in the direction of the magnetic field then the thumb points towards the direction of the force or motion of the conductor. Then if the forefinger points in the direction of field $(\overrightarrow{\mathrm{B}})$, the central finger in the d...
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