Back to MAGNETISM AND MATTER
NEET UG PHYSICS MCQ: MAGNETISM AND MATTER
1
Easy
1 of 1
Application
+4 | -1
A magnet of magnetic moment is aligned in the direction of magnetic field of . The net work done to bring the magnet normal to the magnetic field is
View answer and explanation
Correct option: C
Option C is correct because the work done is calculated using the formula W = MB(cosθ₁ - cosθ₂), where θ₁ = 0° and θ₂ = 90°, resulting in 1.8 J.
More Questions from MAGNETISM AND MATTER
Practice All Chapter MCQs →
Assertion: If a unit north pole rotates around a current carrying wire then work has to be done.
Reason: Magnetic field produced by current is always non - conservative in nature. The magnetic length of a bar magnet is 15 cm then its geometric length is If area vector flux density vector . Then magnetic flux linked with the coil is [Wb] The area of hysteresis loop of a material is equivalent to . When material is magnetized by an alternating field of then energy lost in one hour will be (density of material is ) A bar magnet of moment is placed in the magnetic field . The torque acting on the magnet is Assertion(A): Earth's magnetic field inside a closed iron box is less as compared to the out side.
Reason(R): The magnetic permeability of iron is low.
Reason: Magnetic field produced by current is always non - conservative in nature. The magnetic length of a bar magnet is 15 cm then its geometric length is If area vector flux density vector . Then magnetic flux linked with the coil is [Wb] The area of hysteresis loop of a material is equivalent to . When material is magnetized by an alternating field of then energy lost in one hour will be (density of material is ) A bar magnet of moment is placed in the magnetic field . The torque acting on the magnet is Assertion(A): Earth's magnetic field inside a closed iron box is less as compared to the out side.
Reason(R): The magnetic permeability of iron is low.