Moving Charges and Magnetism

Related Questions

• A straight wire carrying a current 10 A is bent into a semicircular arc of radius $5 cm$. The magnitude of magnetic field at the center is

  ---

• A rectangular loop carrying a current i is placed in a uniform magnetic field B. The area enclosed by the loop is A. If there are n turns in the loop, the torque acting on the loop is given by

  ---

• Field at the centre of a circular coil of radius r, through which a current I flows is

  ---

• When a charged particle enters a uniform magnetic field its kinetic energy

  ---

• An electron is moving with a speed of ${10^8}\,m/\sec $ perpendicular to a uniform magnetic field of intensity B. Suddenly intensity of the magnetic field is reduced to B/2. The radius of the path becomes from the original value of r

  ---