06. Magnetic Dipole and Magnetic Moment Due to Current
Moving Charges & Magnetism

153921 A coil in the shape of an equilateral triangle of side 2 cm is suspended from a vertex such that its hangs in a vertical plane between the poles of a permanent magnet producing a horizontal magnetic field of 100×103 T. The magnetic field is parallel to the plane of the coil. For the moment of couple acting on the coil to be 23×105Nm, the current to be passed through the coil is

1 0.5 A
2 1 A
3 2 A
4 4 A
Moving Charges & Magnetism

153922 The resultant magnetic moment of three magnetic dipoles, each of the magnetic moment M shown in the arrangement is

1 2M
2 (2+1)M
3 (21)M
4 M
Moving Charges & Magnetism

153923 Magnetic field at the centre of a circular loop of area A is B. then the magnetic moment of the loop is ( μ0-permeability of the free space)

1 BA2μ0π
2 BAAμ0
3 BAAμ0π
4 2BAAμ0π
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Moving Charges & Magnetism

153920 Magnetic moment due to the motion of the electron in nth  energy state of hydrogen atom is proportional to .............

1 n2
2 n
3 n2
4 n3
Moving Charges & Magnetism

153921 A coil in the shape of an equilateral triangle of side 2 cm is suspended from a vertex such that its hangs in a vertical plane between the poles of a permanent magnet producing a horizontal magnetic field of 100×103 T. The magnetic field is parallel to the plane of the coil. For the moment of couple acting on the coil to be 23×105Nm, the current to be passed through the coil is

1 0.5 A
2 1 A
3 2 A
4 4 A
Moving Charges & Magnetism

153922 The resultant magnetic moment of three magnetic dipoles, each of the magnetic moment M shown in the arrangement is

1 2M
2 (2+1)M
3 (21)M
4 M
Moving Charges & Magnetism

153923 Magnetic field at the centre of a circular loop of area A is B. then the magnetic moment of the loop is ( μ0-permeability of the free space)

1 BA2μ0π
2 BAAμ0
3 BAAμ0π
4 2BAAμ0π
Moving Charges & Magnetism

153920 Magnetic moment due to the motion of the electron in nth  energy state of hydrogen atom is proportional to .............

1 n2
2 n
3 n2
4 n3
Moving Charges & Magnetism

153921 A coil in the shape of an equilateral triangle of side 2 cm is suspended from a vertex such that its hangs in a vertical plane between the poles of a permanent magnet producing a horizontal magnetic field of 100×103 T. The magnetic field is parallel to the plane of the coil. For the moment of couple acting on the coil to be 23×105Nm, the current to be passed through the coil is

1 0.5 A
2 1 A
3 2 A
4 4 A
Moving Charges & Magnetism

153922 The resultant magnetic moment of three magnetic dipoles, each of the magnetic moment M shown in the arrangement is

1 2M
2 (2+1)M
3 (21)M
4 M
Moving Charges & Magnetism

153923 Magnetic field at the centre of a circular loop of area A is B. then the magnetic moment of the loop is ( μ0-permeability of the free space)

1 BA2μ0π
2 BAAμ0
3 BAAμ0π
4 2BAAμ0π
Moving Charges & Magnetism

153920 Magnetic moment due to the motion of the electron in nth  energy state of hydrogen atom is proportional to .............

1 n2
2 n
3 n2
4 n3
Moving Charges & Magnetism

153921 A coil in the shape of an equilateral triangle of side 2 cm is suspended from a vertex such that its hangs in a vertical plane between the poles of a permanent magnet producing a horizontal magnetic field of 100×103 T. The magnetic field is parallel to the plane of the coil. For the moment of couple acting on the coil to be 23×105Nm, the current to be passed through the coil is

1 0.5 A
2 1 A
3 2 A
4 4 A
Moving Charges & Magnetism

153922 The resultant magnetic moment of three magnetic dipoles, each of the magnetic moment M shown in the arrangement is

1 2M
2 (2+1)M
3 (21)M
4 M
Moving Charges & Magnetism

153923 Magnetic field at the centre of a circular loop of area A is B. then the magnetic moment of the loop is ( μ0-permeability of the free space)

1 BA2μ0π
2 BAAμ0
3 BAAμ0π
4 2BAAμ0π