Quiz  /  Neet MCQ On Biot Bavart Law

  • 1. 
    Which is the equation of the magnetic field according to Biot-Savart’s law?

  • IdIsinθ/r
  • (μ
  • /4π)IdIsinθ/r
  • (μ
  • /4π)IdIsinθ/r
  • (μ
  • /4π)IdIsinθ

  • 2. 
    The magnetic field due to a copper rod carrying direct current is

  • The magnetic field is inside the rod
  • The magnetic field is outside the rod
  • Both inside and outside the rod
  • Neither inside nor outside

  • 3. 
    Consider a current i flowing through the inner conductor of a coaxial cable and the current returns along the outer conductor of the cable. The value of magnetic induction at a distance r from the axis is

  • (μ
  • /4π)(2i/r)
  • ∞
  • Zero
  • (μ
  • /4π)(2πi/r)

  • 4. 
    To which law of electricity is Biot Savart law of magnetism analogous to

  • Coulomb’s law
  • Ohm’s law
  • Kirchoff’s law
  • Faraday’s law

  • 5. 
    Which of the following properties cannot be calculated from Biot Savart law?

  • Magnetic field intensity
  • Flux density
  • Permeability
  • Electric field intensity

  • 6. 
    Consider a circular conductor with 2m radius and 8 A current flowing through it. What is the value of magnetic field intensity at the centre of the circular conductor?

  • 4π x 10
  • T
  • 8π x 10
  • T
  • 8 x 10
  • T
  • 3π x 10
  • T

  • 7. 
    If the strength of the magnetic field at a point r near a long straight current-carrying wire is B. The value of the field at a distance r/2 will be

  • B/2
  • B/4
  • 2B
  • 4B

  • 8. 
    If the current I flows through the coil of radius r then the field at the centre of the circular coil is

  • Inversely proportional to I
  • Directly proportional to I
  • Directly proportional to r
  • Inversely proportional to r

  • 9. 
    Two parallel conductors separated by a distance 2r carries current i in the same direction. The intensity of the magnetic field midway between them is

  • Zero
  • μ
  • i/r
  • 4μ
  • i/r
  • μ
  • i/4r

  • 10. 
    A straight wire of length 2 metres is taken and a current of 1 Ampere is passed through them. The magnetic field at a point along the axis of the wire at a distance of 3 metres from either end of the wire is given by

  • μ
  • /4π
  • Zero
  • μ
  • /π
  • 2μ
  • /π
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