JKBOPEE BSc Nursing Physics Mock Test
Topic: Moving Charges, Magnetism & Matter
Total Questions: 40 | Marks: 40
1. A proton and an alpha particle enter a uniform magnetic field perpendicularly with the same speed. If the radius of the proton's path is 10 cm, the radius of the alpha particle's path will be:
2. According to Biot-Savart's law, the magnetic field induction (dB) at a point due to a current element (idl) is NOT proportional to:
3. Two long parallel wires carry currents of 3A and 5A in the same direction. If the distance between them is 10 cm, the force per unit length between them is:
4. The conversion of a moving coil galvanometer into a voltmeter is done by connecting:
5. Above the Curie temperature, a ferromagnetic material becomes:
6. A current-carrying circular loop of radius R produces a magnetic field B at its center. The magnetic field at a point on the axis at a distance R from the center is:
7. When a charged particle moves through a region of perpendicular electric and magnetic fields without any deviation, then:
8. A bar magnet of magnetic moment M is cut into two equal parts perpendicular to its length. The magnetic moment of each part is:
9. In a moving coil galvanometer, the deflection θ is related to current I as:
10. The magnetic susceptibility (χ) is negative for:
11. A long straight solenoid has 500 turns per meter. If a current of 2A flows through it, the magnetic field inside the solenoid is:
12. A force F acts on a orbital electron due to a magnetic field B. If the electron moves in a circle of radius r with speed v, the work done by the magnetic force in one complete revolution is:
13. The time period of a charged particle undergoing circular motion in a uniform magnetic field is independent of its:
14. The magnetic field at a distance r from a long straight wire carrying current I is B. If the current is doubled and the distance is halved, the new magnetic field will be:
15. Which of the following materials has relative permeability (μr) slightly greater than 1?
16. A square loop of side L carries a current I. The magnetic field at the center of the loop is:
17. The torque experienced by a magnetic dipole of moment M placed in a uniform magnetic field B is maximum when the angle between M and B is:
18. A magnetic needle is kept in a non-uniform magnetic field. It experiences:
19. At a certain place, the horizontal and vertical components of Earth's magnetic field are equal. The angle of dip at that place is:
20. The current sensitivity of a moving coil galvanometer increases when:
21. A particle with charge q is moving with velocity v in a magnetic field B. If v is parallel to B, the force on the particle is:
22. The SI unit of magnetic pole strength is:
23. Which property is shown by all substances (dia, para, and ferro)?
24. An ampere is defined as the current which, flowing in two infinitely long parallel wires 1m apart in vacuum, produces a force per unit length of:
25. The material used for making permanent magnets should have:
26. Magnetic field lines:
27. A galvanometer can be converted into an ammeter by connecting:
28. The work done in rotating a bar magnet of magnetic moment M from stable equilibrium to unstable equilibrium in a uniform magnetic field B is:
29. A paramagnetic substance is placed in a non-uniform magnetic field. It will experience a force pointing:
30. The sensitivity of a moving coil galvanometer can be increased by:
31. No force acts on a current-carrying conductor placed in a uniform magnetic field, if the angle between the conductor and the magnetic field is:
32. Hysteresis loss is least for:
33. A circular coil of radius r has N turns and carries a current I. The magnetic dipole moment of the coil is:
34. Ampere's circuital law is given by:
35. The angle between magnetic meridian and geographical meridian is known as:
36. A current flows in a conductor from east to west. The direction of magnetic field at a point above the conductor is towards:
37. The radius of curvature of the path of a charged particle moving in a uniform magnetic field is proportional to:
38. Curie Weiss law is obeyed by:
39. Which of the following is NOT a property of magnetic lines of force?
40. Shunt required to pass 10% of main current through a galvanometer of resistance G is:
No comments:
Post a Comment
If you have any doubt or if you have any query related to copy right please let me know