Question

Which of the following statements is true?

• A. The presence of a large magnetic flux through a coil maintains a current in the coil if the circuit is continuous
• B. A coil of a metal wire kept stationary in a nonuniform magnetic field has an emf induced in it
• C. A charged particle enters a region of uniform magnetic field at an angle of 85° to the magnetic lines of force; the path of the particle is a circle.
• D. There is no change in the energy of a charged particle moving in a magnetic field although a magnetic force is acting on it

Answer 1

Answer: (B)

Non-uniform magnetic field causes change in flux.