joining the two poles the magnetic field will be Zero ?
The core of a toroid having 3000 turns has inner and outer radii of 11 cm and 12 cm respectively. THe magnetic field in the core for a current of 0.70 A is 2.5 T. What is the relative permeability of the core?
18
Oct
The core of a toroid having 3000 turns has inner and outer radii of 11 cm and 12 cm respectively. THe magnetic field in the core for a current of 0.70 A is 2.5 T. What is the relative permeability of the core? joining the two poles the magnetic field will be Zero ? Two [...]
A bar magnet of length 8cm and having a pole strengh of 1.0Am is placed vertically on a horizontal table with its north pole on the table. A neutral point is found on the table at a distance of 6.0 cm south of the magnet. Calculate the earth’s horizontal magnetic field.
18
Oct
A bar magnet of length 8cm and having a pole strengh of 1.0Am is placed vertically on a horizontal table with its north pole on the table. A neutral point is found on the table at a distance of 6.0 cm south of the magnet. Calculate the earth’s horizontal magnetic field. joining the two poles [...]
A short bar magnet is placed in a horizontal plane with its axis in the magnetic merdian . Null points are found on its equitorial line (i.e., its normal bisector) at 12.5 G and the angle of dip is zero. (i) What is the total magnetic field at points on the axis of the magnet located by the same distance (12.5 cm) as the null-points from the centre? (ii) Locate the null points when the magnet is turned around by 180∘ . Assume that the length of the magnet is negligible as compared to the distance of the null-point from the centre of the magnet.
18
Oct
A short bar magnet is placed in a horizontal plane with its axis in the magnetic merdian . Null points are found on its equitorial line (i.e., its normal bisector) at 12.5 G and the angle of dip is zero. (i) What is the total magnetic field at points on the axis of the magnet [...]
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A short bar magnet is placed in a horizontal plane with its axis in the magnetic merdian . Null points are found on its equitorial line (i.e. ,
joining the two poles the magnetic field will be Zero ? ,
Two like magnetic poles of strength 25 Am and 64 Am are situated 1 m apart in air. At what point on the line ,
A small bar magnet has a magnetic moment 5 Am^2. The neutral point is obtained on axial line when it is placed in magnetic meridian with its N pole pointing S of earth and neutral point is obtained on equatorial line, when it is placed with its N pole pointing towards north of earth. If horizontal component of earth’s field is 0⋅38 G, find the position of neutral points in the two cases.
18
Oct
A small bar magnet has a magnetic moment 5 Am^2. The neutral point is obtained on axial line when it is placed in magnetic meridian with its N pole pointing S of earth and neutral point is obtained on equatorial line, when it is placed with its N pole pointing towards north of earth. If [...]
A small coil of radius 0.002 m is placed on the axis of a magnet of magnetic moment 105 JT−1 and length 0.1 m at a distance of 0.15 m from the centre of the magnet. The plane of the coil is perpendicular to the axis of the magnet. Find the force on the when a current of 2.0 A is passed through it.
18
Oct
A small coil of radius 0.002 m is placed on the axis of a magnet of magnetic moment 105 JT−1 and length 0.1 m at a distance of 0.15 m from the centre of the magnet. The plane of the coil is perpendicular to the axis of the magnet. Find the force on the when [...]
A bar magnetic with poles 25 cm apart and pole strength 14⋅4 Am rests with its centre on a frictionless pivot. It is held in equilibrium at 60∘ to a uniform magnetic field of induction 0⋅25 T by applying a force F at right angles to its axis, 10cm from the pivot. Calculate the value of F. What will happen if the force is removed?
18
Oct
A bar magnetic with poles 25 cm apart and pole strength 14⋅4 Am rests with its centre on a frictionless pivot. It is held in equilibrium at 60∘ to a uniform magnetic field of induction 0⋅25 T by applying a force F at right angles to its axis, 10cm from the pivot. Calculate the value [...]
Two thin bar magnets with a length 4 Am and 7 Am and lengths 0.21 m and 0.12 m respectively are placed at right angles to each other with the N- pole of first touching the S – pole of the second. Find the magnetic moment of the system.
18
Oct
Two thin bar magnets with a length 4 Am and 7 Am and lengths 0.21 m and 0.12 m respectively are placed at right angles to each other with the N- pole of first touching the S – pole of the second. Find the magnetic moment of the system. joining the two poles the magnetic [...]
Two like magnetic poles of strength 25 Am and 64 Am are situated 1 m apart in air. At what point on the line, joining the two poles the magnetic field will be Zero ?
18
Oct
Two like magnetic poles of strength 25 Am and 64 Am are situated 1 m apart in air. At what point on the line, joining the two poles the magnetic field will be Zero ? joining the two poles the magnetic field will be Zero ? Two like magnetic poles of strength 25 Am and [...]