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
Physics
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
Two poles of same strength attract each other with a force of magnitude F
Two poles of same strength attract each other with a force of magnitude F when placed at the two corners…
7 years ago
A thermoelectric refrigerator works on
A thermoelectric refrigerator works on Options (a) Joule effect (b) Seebeck effect (c) Peltier effect (d) Thermionic emission Correct Answer:…
7 years ago
A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current
A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current of 5 A…
7 years ago