Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
A square frame carrying a current I = 0.90 A is located in the same plane as a long straight wire carrying a current I0 = 5 A, The frame side has a length a = 8 cm. The axis of the frame passing through the mid-point of the opposite sides is parallel to the wire and is separated form it by a distance h = 15 times greater than the side of the frame. Find: (a) ampere force acting on the frame. (b) The mechanical work to be performed in order to turn the frame through 180∘ about its axis, with the current maintained constant.
05
Sep
A square frame carrying a current I = 0.90 A is located in the same plane as a long straight wire carrying a current I0 = 5 A, The frame side has a length a = 8 cm. The axis of the frame passing through the mid-point of the opposite sides is parallel to the [...]
A coil of radius R carries current i1. Another concentric coil of radius r(r<<R) carries current i2. Planes of two coils are mutually perpendicular and both the coil are free to rotate about common diametre. Find maximum kinetic energy of smaller coil when both the coils are released, masses of coils are M and m, respectively.
05
Sep
A coil of radius R carries current i1. Another concentric coil of radius r(r<<R) carries current i2. Planes of two coils are mutually perpendicular and both the coil are free to rotate about common diametre. Find maximum kinetic energy of smaller coil when both the coils are released, masses of coils are M and m, [...]
A spgherical shell of radius ‘R’ and uniformly charged with charge ‘Q’ is rotating about its axis with frequency ‘f’ . Find the magnetic moment of the sphere.
05
Sep
A spgherical shell of radius ‘R’ and uniformly charged with charge ‘Q’ is rotating about its axis with frequency ‘f’ . Find the magnetic moment of the sphere. A spgherical shell of radius 'R' and uniformly charged with charge 'Q' is rotating about its axis with frequency 'f' . Find the magnetic moment of the [...]
A current carrying circular loop is freely suspended by a long thread. The plane of the loop will point in the direction
05
Sep
A current carrying circular loop is freely suspended by a long thread. The plane of the loop will point in the direction A current carrying circular loop is freely suspended by a long thread. The plane of the loop will point in the direction September 5, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma [...]
A thin circular wire carrying a current I has a magnetic moment M. The shape of the wire is changed to a square and it carries the same current. It will have a magnetic moment
05
Sep
A thin circular wire carrying a current I has a magnetic moment M. The shape of the wire is changed to a square and it carries the same current. It will have a magnetic moment A thin circular wire carrying a current I has a magnetic moment M. The shape of the wire is changed [...]
A wire of length L metre carrying a current of I ampere is bent in the form of a circle. its magnitude of magnetic moment will be
05
Sep
A wire of length L metre carrying a current of I ampere is bent in the form of a circle. its magnitude of magnetic moment will be A wire of length L metre carrying a current of I ampere is bent in the form of a circle. its magnitude of magnetic moment will be September [...]
Two wires of the same length are shaped into a square and a circle. if they carry same current, ratio of the magnetic moment is
05
Sep
Two wires of the same length are shaped into a square and a circle. if they carry same current, ratio of the magnetic moment is ratio of the magnetic moment is Two wires of the same length are shaped into a square and a circle. if they carry same current September 5, 2020 Category: Uncategorised [...]
Four wires, each of length 2.0 m, are bent into four loops P, Q, R and S and then suspended in a uniform magnetic field. If the same current is passed in each, then the torque will be maximum on the loop
04
Sep
Four wires, each of length 2.0 m, are bent into four loops P, Q, R and S and then suspended in a uniform magnetic field. If the same current is passed in each, then the torque will be maximum on the loop -q are bent into four loops P each of length 2.0 m Four [...]
A spherical shell of radius ‘R’ and uniformly charged with charge ‘Q’ is rotating about its axis with frequency ‘f’ . Find the magnetic moment of the sphere.
04
Sep
A spherical shell of radius ‘R’ and uniformly charged with charge ‘Q’ is rotating about its axis with frequency ‘f’ . Find the magnetic moment of the sphere. A spherical shell of radius 'R' and uniformly charged with charge 'Q' is rotating about its axis with frequency 'f' . Find the magnetic moment of the [...]
In Figure (a), two concentric coils, lying in the same plane, carry currents in opposite direction. The current in the larger coil 1 is fixed. Current i2 in coil 2 can be varied. Figure (b) gives the net magnetic moment of the two-coil system as a function of i2. The vertical axis scale is set by μ≠t,s=2.0×10−5A.m2, and the horizontal axis scale is set by i2s=10.0mA. If the current in coil 2 is then reversed, what is the magnitude of the net magnetic moment of the two-coil system when i2 = 7.0 m A?
04
Sep
In Figure (a), two concentric coils, lying in the same plane, carry currents in opposite direction. The current in the larger coil 1 is fixed. Current i2 in coil 2 can be varied. Figure (b) gives the net magnetic moment of the two-coil system as a function of i2. The vertical axis scale is set [...]
Tags:
40 ,
A current loop ,
at angle θ=30∘ to the direction of a uniform magnetic field of magnitude 0.50 T. In unit-vector notation ,
carrying a current of 5.0 A ,
Figure shows a rectangular 20-trun coil of wire of dimensions 10 cm by 5.0 cm. It carries a current of 0.10 A and is hinged along one long side. It is mounted in the xy. Plane ,
has 3.00 turns and an area of 4.00×10−3m2 ,
In Figure (a) ,
is in the shape of a right triangle with sides 30 ,
lying in the same plane ,
The coil in figure carries current i=2.00 A in the direction indicated is parallel to an xz plane ,
two concentric coils ,
what is the torque acting on the coil about the hinge line? ,