Magnetic Field Density MCQ

Test your knowledge with important Magnetic Field Density MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Magnetic Field Density MCQs on Bissoy. Bissoy App

• Find current density J when B = 50 x 10-6 units and area dS is 4 units.
  ক

  9.94

  খ

  8.97

  গ

  7.92

  ঘ

  10.21
• Find the magnetic flux density B when E is given by 3sin y i + 4cos z j + ex k.
  ক

  ∫(4sin z i – ex j – 3cos y k)dt

  খ

  -∫(4sin z i – ex j – 3cos y k)dt

  গ

  ∫(4sin y i – ex j + 3cos y k)dt

  ঘ

  -∫(4sin y i + ex j + 3cos y k)dt
• Find the magnetic flux density when a flux of 28 units is enclosed in an area of 15cm.
  ক

  178.33

  খ

  186.67

  গ

  192.67

  ঘ

  124.33
• Find the magnetic flux density of the material with magnetic vector potential A = y i + z j + x k.
  ক

  i + j + k

  খ

  –i – j – k

  গ

  –i-j

  ঘ

  –i-k
• If ∫ H.dL = 0, then which statement will be true?
  ক

  E = -Grad(V)

  খ

  B = -Grad(D)

  গ

  H = -Grad(Vm)

  ঘ

  D = -Grad(A)
• Find the magnetic field intensity when the flux density is 8 x 10-6 Tesla in the medium of air.
  ক

  6.36

  খ

  3.66

  গ

  6.63

  ঘ

  3.36
• Find the current when the magnetic field intensity is given by 2L and L varies as 0->1.
  ক

  2

  খ

  1

  গ

  0.5

  ঘ

  0
• Find the flux contained by the material when the flux density is 11.7 Tesla and the area is 2 units.
  ক

  23.4

  খ

  12.3

  গ

  32.4

  ঘ

  21.3
• The divergence of H will be
  ক

  1

  খ

  -1

  গ

  ∞

  ঘ

  0
• Identify which of the following is the unit of magnetic flux density?
  ক

  Weber

  খ

  Weber/m

  গ

  Tesla

  ঘ

  Weber-1