New chat PYQ Library Doubts Rank report

Sign in to see Recents

Sign in to save progress →

Magnetism question

2025 · Shift 2 · Q41

Guest · try one question or challengeGuest · try one question or challenge

PYQ Library
JEE Advanced
Physics
Magnetism
2025 · Shift 2 · Q41

Magnetism question

2025 · Shift 2 · Q41

JEE AdvancedPhysicsMagnetismNumerical+4 / −1

A conducting solid sphere of radius

R

and mass

M

carries a charge

Q

. The sphere is rotating about an axis passing through its center with a uniform angular speed

\omega

. The ratio of the magnitudes of the magnetic dipole moment to the angular momentum about the same axis is given as

\alpha \frac{Q}{2 M}

. The value of

\alpha

is

\underline{\hspace{2cm}}

.

Numerical answer

More from Magnetism

An infinitely long wire, located on the $z$ -axis, carries a current $B$ along the $+ z$ -direction and produces the magnetic field $B$ . The magnitude of the line integral $\int B \cdot d l$ along a straight line…2024 · MCQ
A thin stiff insulated metal wire is bent into a circular loop with its two ends extending tangentially from the same point of the loop. The wire loop has mass $m$ and radius $r$ and it is in a uniform vertical magnetic field $B_{0}$ , as… Includes diagram2024 · MCQ
A positive, singly ionized atom of mass number $A_{M}$ is accelerated from rest by the voltage $192 V$ . Thereafter, it enters a rectangular region of width $w$ with magnetic field $B_{0} = 0.1 \hat{k}$ Tesla, as shown… Includes diagram2024 · Multiple correct
A rectangular conducting loop of length $4 cm$ and width $2 cm$ is in the $x y$ -plane, as shown in the figure. It is being moved away from a thin and long conducting wire along the direction $\frac{3}{2} \overset{x}{^} + \frac{1}{2} \overset{y}{^}$ … Includes diagram2023 · Numerical
A small circular loop of area $A$ and resistance $\overset{n}{^}$ is fixed on a horizontal $x y$ -plane with the center of the loop always on the axis $\overset{n}{^}$ of a long solenoid. The solenoid has $m$ turns per unit length and carries current $I$ … Includes table Includes diagram2022 · MCQ
Which one of the following options represents the magnetic field $B$ at $O$ due to the current flowing in the given wire segments lying on the $x y$ plane? Includes diagram2022 · MCQ
A long straight wire carries a current, I = 2 ampere. A semi-circular conducting rod is placed beside it on two conducting parallel rails of negligible resistance. Both the rails are parallel to the wire. The wire, the rod and the rails… Includes diagram2021 · Multiple correct
An $α$ -particle (mass 4 amu) and a singly charged sulphur ion (mass 32 amu) are initially at rest. They are accelerated through a potential V and then allowed to pass into a region of uniform magnetic field which is normal to the…2021 · Numerical