Radius of a circular conducting coil is 7 cm and the number of turns in it is 50 . If 1A current is sent through it , determine the magnetic moment of the coil .

Diameter of a circular conducting coil 20 cm and the number of turns in it is 500 . If 3 a current is sent through it , the strength of the coil becomes equal to the strength of a bar magnet of length 5cm . Determine the pole - strength of the bar magnet .

The radius of a circular conducting coil of 100 turns is 10 cm . If 2 A current passes through the coil , what will be the magnetic moment generated ?

A circular coil of N turns is made of a conducting wire of a certain length . When a current I is sent through it , the magnetic moment is p , Another coil of 2N turns is made with the same wire and the same current is sent through it . The magnetic moment becomes p'. If p : p ' = n : 1 , what is the value of n ?

If a circular coil area A,number of turns n carries a current I then it is equivalent to a magnetic dipole.The magnetic moment of a coil is,

A circular coil of wire n turns has a radius r and carries a current I . Its magnetic dipole moment is M .Now the coil is unwound and again rewound into a circular coil of half the initial radius and the same current is passed through it, then the dipole moment of this new coil is 1

A coil of n turns and radius R carries a current I it is unwound and rewound to make a new coil of radius (R )/(2) and the same current is passed through it what is the ratio of the magnetic moment of the new coil and the original coil ?

A circular coil of radius 10 cm and 100 turns carries a current 1A. What is the magnetic moment of the coil?

A circular coil of radius 10 cm and 100 turns carries a current 1 A. What is the magnetic moment of the coil ?

A circular coil of wire "n" turns has a radius "r" and carries a current "I" . Its magnetic dipole moment is "M" .Now the coil is unwound and again rewound into a circular coil of half the initial radius and the same current is passed throught is, then the dipole moment of this new coil is