Goodmarks

Physics · JEE

Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field Short Tricks for JEE

20+ syllabus-aligned questions available

Quick answer

Short tricks for Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field work only with strong fundamentals. Apply the tips below in timed sets and review every explanation.

Use these Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field shortcuts to save time in JEE Physics papers — then validate speed with 20+ MCQs on Goodmarks.

Short tricks for speed

  • Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field focus drill

    Solve 15 mixed MCQs for Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field, review every explanation, and note formulas you hesitated on.

  • Dimensional check first

    Before solving, verify each term has consistent SI dimensions — eliminates wrong options quickly in JEE MCQs.

  • Limiting cases

    Substitute extreme values (t→0, m→∞, θ→0) to sanity-check your final expression.

Syllabus context

Part of Magnetic Effects of Current and Magnetism in JEE Main Physics.

Free sample questions

Attempt 8 free MCQs for Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field. Unlock 12+ more with Pro.

Unlock full bank
Q1PhysicsUnit 13: Magnetic Effects of Current and Magnetism
The force between two magnetic poles is FF when they are separated by certain distance. If the distance between the two poles is doubled and strength of each pole is tripled. The percentage change in the force between the two poles is :
Q2PhysicsUnit 13: Magnetic Effects of Current and Magnetism
The distance between two magnetic poles is doubled and their pole-strength is also doubled. The force between them
Q3PhysicsUnit 13: Magnetic Effects of Current and Magnetism
Assertion: The magnetic field lines of the earth resemble that of a magnetic dipole located at the centre of the earth. Reason: The axis of the dipole coincide with the axis of rotation of the earth.
Q4PhysicsUnit 13: Magnetic Effects of Current and Magnetism
Assertion (A) : The net magnetic flux coming out of a closed surface is always zero. Reason (R) : Unlike poles of equa strength exist together
Q5PhysicsUnit 13: Magnetic Effects of Current and Magnetism
In a plane perpendicular to the magnetic meridian the dip needle will remain :
Q6PhysicsUnit 13: Magnetic Effects of Current and Magnetism
A bar magnet of magnetic moment MM is divided into ' nn ' equal parts by cutting parallel to length. Then one part is suspended in a uniform magnetic field of strength 2T2 T and held making an angle 60060^{0} with the direction of the field. When the magnet is released, the kinetic energy of the magnet in the equilibrium position is:
Q7PhysicsUnit 13: Magnetic Effects of Current and Magnetism
A magnet makes 40 oscillations per minute at a place having magnetic field intensity of 0.1×10−50.1 \times 10^{-5} T. At another place, it takes 2.5 seconds to complete one vibration. The value of earth's horizontal field at that place is
Q8PhysicsUnit 13: Magnetic Effects of Current and Magnetism
Two short magnets of equal dipole moments MM are fastened perpendicularly at their centres as given in the figure. The magnitude of the magnetic field at a distance dd from the centre on the bisector of the right angle is

Want unlimited Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field practice?

Pro unlocks the full question bank, topic filters, and attempt history.

Get started freeView Pro plans

Popular questions in Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field

Frequently asked questions

Are short tricks enough for Magnetic field due to a magnetic dipole (bar magnet) along its axis and perpendicular to its axis, torque on a magnetic dipole in a uniform magnetic field in JEE?

No — tricks complement concepts. Master the theory first, then use shortcuts in timed MCQ practice.

Related topics