Magnetic flux and flux density are related by___________________?

Related Mcqs:

1. SI unit of flux density is____________________?

   A. NA-1m-1
   B. NAm-1
   C. NmA-1
   D. NmA-2

2. The standard vector symbol for flux density is ____________________?

   A. M
   B. L
   C. H
   D. B

3. A changing magnetic flux produces around itself an induced_______________?

   A. Magnetic field
   B. Electric field
   C. Electromagnetic force
   D. Artificial gravitational field

4. Magnetic force acting on a unit positive charge moving perpendicular to the magnetic field with a unit velocity is called____________________?

   A. magnetic flux
   B. magnetic field intensity
   C. magnetic induction
   D. self inductance

5. A current carrying conductor is placed in a uniform magnetic field parallel to it. The magnetic force experienced by the conductor is _____________________?

   A. F=1/B
   B. F=1/Bsinθ
   C. F/0
   D. F=1/Bcosθ

6. If the plane of the rectangular coil is parallel to the magnetic field (i.e radial magnetic field) the torque on the coil is_____________________?

   A. τ = NIAB cosφ
   B. τ = NIAB sinφ
   C. τ = NIAB tanφ
   D. τ = NIAB

7. Very weak magnetic fields are detected by___________________?

   A. Squids
   B. Magnetic resonance imaging (MRI)
   C. Magnetometer
   D. Oscilloscope

8. An electron enters a region where the electric field E is perpendicular to the magnetic field B. It will suffer no deflection if_________________?

   A. E = BeV
   B. B = eE/V
   C. E = BV
   D. E = BeV/2

9. Coil of a galvanometer is suspended in a radial magnetic field so that the deflecting torque on the coil is always___________________?

   A. BINA cosa
   B. BINA sina
   C. BINA tana
   D. BINA

10. A magnetic compass will be deflected if it is kept near a____________________?

    A. charge in motion
    B. charge at rest
    C. both
    D. none