Q.1
What is the magnetic field inside a pipe?
  • Zero
  • Infinity
  • Unity
  • None of these
Q.2
Which law can ampere’s circuital be derived from?
  • Newton’s Law
  • Biot-Savart Law
  • Gauss Law
  • Kirchhoff’s Law
Q.3
The angle at which a charged particle moves through a magnetic field with a velocity, having zero magnetic force is 180o.
  • True
  • False
Q.4
A wire of length L carrying current I is bent into a circle of one turn. The field at the centre of the coil is BA similar wire of length L carrying current I is bent into a square of one turn. The field at its centre is BThen
  • B1＞B2
  • B1/B2 =2
  • B1=B2
  • B2＞B1
Q.5
A large metal sheet carries an electric current along its surface. Current per unit length is λ. Magnetic field near the metal sheet is
  • Μ0λ
  • (½)μ0λ
  • μ0λ/2π
  • μ0/λ2π
Q.6
A coil of diameter 0.2 cm is formed by a 6.m long wire and a current of 1 amp is passed in it. The magnetic induction at its centre will be
  • 6.28 T
  • 7.25 x 10-5 T
  • 6.28 x 10-5 T
  • 6.28 x 10-2 T
Q.7
Find the Maxwell law derived from Ampere law.
  • div(i) = h
  • curl(h) = j
  • div(h) = j
  • curl(b) = d
0 h : 0 m : 1 s