1. According to Ampere's Circuital law

2. Two identical bar magnets each of dipole moment p and length I are perpendicular to each other as shown in Fig. The dipole moment of the combination is:

3. The current sensitibility of a moving coil galanometer increases with decrease in:

4. A current carring coil is placed in a uniform magnetic field. If the coil turns through an angle θ, then the torque is directly proportional to:

5. The sensitivity of a tangent galvanometer can be increased by increasing:

6. The permeability of a paramagnetic substance is:

7. Which of the following shows that the earth behaves as a magnet?

8. What is the angle of dip at the magnetic poles?

9. A charged particle of mass m and charge q travels on a circular path of radius r i.e., perpendicular to the magnetic field B. The time taken by particle to complete on revolution is :

10. Circular loop of radius 0.0157 m carries a current 2 A. The magnetic field at the centre of the loop is :