Advertisements
Advertisements
प्रश्न
State Coulomb’s inverse law.
उत्तर
The force of attraction or repulsion between two magnetic poles is directly proportional to the product of their pole strengths and inversely proportional to the square of the distance between them,
`vec"F" prop ("qm"_"A" "qm"_"B")/"r"^2 hat "r"`;
F = `("K" "qm" "A" "qm" "B")/"r"^2`
qmA & qmB – pole strengths of two poles,
r – distance between two magnetic poles.
APPEARS IN
संबंधित प्रश्न
A circular coil of radius 5 cm and 50 turns carries a current of 3 ampere. The magnetic dipole moment of the coil is nearly
A thin insulated wire forms a plane spiral of N = 100 tight turns carrying a current 1 = 8 m A (milli ampere). The radii of inside and outside turns are a = 50 mm and b = 100 mm respectively. The magnetic induction at the center of the spiral is
Three wires of equal lengths are bent in the form of loops. One of the loops is circle, another is a semi-circle and the third one is a square. They are placed in a uniform magnetic field and same electric current is passed through them. Which of the following loop configuration will experience greater torque?
Define magnetic dipole moment.
Calculate the magnetic field at a point on the axial line of a bar magnet.
Obtain the magnetic induction at a point on the equatorial line of a bar magnet. Magnetic field at a point along the equatorial line due to a magnetic dipole (bar magnet).
