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Recent questions tagged mognetic dipole
+3
votes
1
answer
A toroid of n turns, mean radius R and cross-sectional radius a carries current I. It is placed on a horizontal table
asked
Apr 3, 2019
in
Class 12
by
kratos
cbse
magnetism and matter
magnets
class-12
mognetic dipole
+1
vote
1
answer
A rectangular coil of sides 'l' and 'b' carrying a current I is subjected to a uniform magnetic field → B, acting perpendicular to its plane.
asked
Mar 28, 2019
in
Class 12
by
kratos
class-12
mognetic dipole
magnetism and matter
cbse
+2
votes
1
answer
A 250-turn rectangular coil of length 2.1 cm and width 1.25 cm carries a current of 85 μA and subjected to a magnetic field of strength 0.85 T.
asked
Mar 13, 2019
in
Class 12
by
kratos
neet
cbse
magnetism and matter
magnets
class-12
mognetic dipole
+2
votes
1
answer
A conductor of length ℓ and mass m is placed along the east-west line of a table.
asked
Feb 25, 2019
in
JEE
by
kratos
cbse
jee
magnetic field
magnetism and matter
jee mains
class-12
mognetic dipole
+1
vote
1
answer
An electron in an atom revolves around the nucleus in an orbit of radius r with frequency v.
asked
Feb 12, 2019
in
Class 12
by
kratos
class-12
mognetic dipole
magnetism and matter
cbse
+1
vote
1
answer
There are two current carrying planar coils made each from identical wires of length L. C1 is circular (radius R ) and C2 is square (side a).
asked
Jan 25, 2019
in
Class 12
by
kratos
neet
cbse
jee main 2020
aiims
magnetism and matter
class-12
mognetic dipole
+2
votes
1
answer
A circular coil of N turns and radius R carries a current I. It is unwound and rewound to make another
asked
Jan 24, 2019
in
JEE
by
kratos
cbse
moving charges and magnetism
moving charges
magnetism and matter
jee mains
magnetism
class-12
mognetic dipole
magnets
+3
votes
1
answer
The intensity of magnetic field due to an isolated pole of strength mp at a point distant r from it will be
asked
Jan 20, 2019
in
Class 12
by
kratos
neet
cbse
aiims
magnetism and matter
magnets
class-12
mognetic dipole
+2
votes
1
answer
A coil of radius R carries a current I. Another concentric coil of radius r (r << R) carries current I/2 .
asked
Jan 5, 2019
in
JEE
by
kratos
cbse
jee
moving charges and magnetism
moving charges
jee mains
magnetism and matter
magnetism
class-12
mognetic dipole
+2
votes
1
answer
An electron of charge e moves in a circular orbit of radius r around the nucleus at a frequency v.
asked
Dec 18, 2018
in
Class 12
by
kratos
amu
neet
cbse
class-11
aiims
jee
magnetism and matter
jee mains
class-12
mognetic dipole
+3
votes
1
answer
A circular coil of 16 turns and radius 10 cm carrying a current of 0.75 A rests with its plane normal to an externa
asked
Dec 6, 2018
in
Class 12
by
kratos
cbse
matter
magnetism and matter
magnets
magnetism
class-12
mognetic dipole
+1
vote
1
answer
(a) Derive the expression for the torque on a rectangular current carrying loop suspended in a uniform magnetic field.
asked
Nov 17, 2018
in
Class 12
by
kratos
cbse
class-11
magnetism and matter
class-12
mognetic dipole
+2
votes
1
answer
Consider a square OPQR having the length of side a, where O(0, 0).
asked
Nov 10, 2018
in
JEE
by
kratos
cbse
jee
circles
class-9
jee mains
lines
magnetism and matter
class-12
mognetic dipole
+2
votes
1
answer
A circular coil of N turns and radius R carries a current I. It is unwound and rewound to make another
asked
Oct 27, 2018
in
JEE
by
kratos
cbse
jee
moving charges and magnetism
moving charges
magnetism and matter
jee mains
magnetism
class-12
mognetic dipole
magnets
+3
votes
1
answer
An electron revolves around the nucleus. The radius of the circular orbit is r. To double the kinetic energy of electron its orbit radius is
asked
Oct 25, 2018
in
JEE
by
kratos
isc
cbse
electricity
jee
icse
magnetism and matter
jee mains
coulombs law
class-12
mognetic dipole
+1
vote
1
answer
A copper rod is suspended in a non-homogeneous magnetic field region.
asked
Oct 6, 2018
in
Class 12
by
kratos
neet
cbse
aiims
magnetism and matter
class-12
mognetic dipole
+1
vote
1
answer
The magnetic moment (μ) of a revolving electron around the nucleus varies with principal quantum number n as
asked
Sep 27, 2018
in
Class 12
by
kratos
cbse
matter
magnetism and matter
magnetism
class-12
atoms
mognetic dipole
+3
votes
1
answer
A rectangular coil of length 0.12 m and width 0.1 m having 50 turns of u,ire is suspended vertically in a
asked
Sep 22, 2018
in
Class 12
by
kratos
neet
cbse
magnetism and matter
magnets
class-12
mognetic dipole
+2
votes
1
answer
A metal sample carrying a current along X-axis with density Jx is subjected to a magnetic field Bz (along z-axis).
asked
Sep 14, 2018
in
Class 12
by
kratos
neet
transmission lines
cbse
moving charges and magnetism
jee mains 2019
magnetism and matter
class-12
mognetic dipole
+2
votes
1
answer
A coil N turns and radius "R" carries a current i it is unwound and rewound to make a square coil of side "α" having
asked
Aug 1, 2018
in
JEE
by
kratos
cbse
jee
moving charges and magnetism
moving charges
magnetism and matter
jee mains
magnetism
class-12
mognetic dipole
magnets
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