A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists
A proton of mass m and charge q is moving in a plane with kinetic energy E. If there exists…
7 years ago
Magnetic Effects of Current and Magnetism
A magnetic needle suspended parallel to a magnetic field requires √3J of work
A magnetic needle suspended parallel to a magnetic field requires √3 J of work to turn it through 60⁰. The…
7 years ago
Two lines of force due to a bar magnet
Two lines of force due to a bar magnet Options (a) Intersect at the neutral point (b) Intersect near the…
7 years ago
The magnetic field due to a current carrying circular loop of radius 3 cm at a point
The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis…
7 years ago
The horizontal and vertical components of earth’s magnetic field at a place
The horizontal and vertical components of earth's magnetic field at a place are 0.3 G and 0.52 G. The earth's…
7 years ago
A compass needle which is allowed to move in a horizontal plane
A compass needle which is allowed to move in a horizontal plane is taken to a geomagnetic pole It: Options…
7 years ago
The magnetic susceptibility is negative for
The magnetic susceptibility is negative for Options (a) Paramagnetic materials (b) Diamagnetic materials (c) Ferromagnetic materials (d) Paramagnetic and ferromagnetic…
7 years ago
A short bar magnet of magnetic moment 0.4 JT⁻¹ is placed in a uniform magnetic field
A short bar magnet of magnetic moment 0.4 JT⁻¹ is placed in a uniform magnetic field of 0.16 T. The…
7 years ago
A toroid having 200 turns carries a current of 1 A. The average radius of the toroid
A toroid having 200 turns caries a current of 1 A. The average radius of the toroid is 10 cm.…
7 years ago
There are four light-weight-rod samples A,B,C,D seperately suspended by threads
There are four light-weight-rod samples A,B,C,D separately suspended by threads. A bar magnet is slowly brought near each sample and…
7 years ago