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Class 12 Physics (Part I) Chapter 5 Magnetism And Matter Quiz 1 (25 MCQs)

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1. What are the two poles of a magnet?
2. A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical .....
3. Which of the following describes a motor?
4. What is the term for the region around a magnet where magnetic materials are attracted or repelled?
5. Lines which represent places of constant angle of dip are called
6. A bar magnet AB with magnetic moment M is cut into two equal parts perpendicular to its axis. What will be the magnetic moment of each part?
7. Which of the following is an example for diamagnetic substances
8. The values of angle of dip at equator and poles are respectively
9. At the place the horizontal component of magnetic field is B and angle of dip is 60$^\circ$, the value of the horizontal component of magnetic field at equator is
10. A particle of charge Q and mass m is accelerated from rest through a potential difference V, attaining a kinetic energy K. What is the kinetic energy of a particle of charge 2Q and mass m/2 that is accelerated from rest through the same potential difference?
11. Non-magnetic materials can be can acquire magnetism when placed inside magnetic field
12. The continuous flow of electric charges is called
13. SI unit of magnetic field intensity at a place is Wb / $m^2$
14. What areas of a magnet have the strongest magnetic effect?
15. Assertion:The poles of magnet can not be separated by breaking into two pieces. Reason:The magnetic moment will be reduced to half when a magnet is broken into two equal pieces.
16. Three needles N1 N2 and N3 are made of a ferromagnetic, a paramagnetic and a diamagnetic substance respectively. A magnet, when brought close to them, will
17. The angle between Magnetic meridian and the geographic meridian is known as
18. At the magnetic north pole of the earth, the value of the horizontal component of earth's magnetic field and angle of dip are respectively-
19. What is the sure test of magnetism?
20. What are non-magnetic materials? Provide two examples.
21. The nature of magnetic field inside a moving coil galvanometer is radical.
22. Magnetic poles are always found in pairs
23. Which of the following is weakly repelled by a magnet field
24. A ferro magnetic substance is heated above its curie temperature . Which of the statements is correct?
25. Very large capacitors have been considered as a means for storing electrical energy. If we constructed a very large parallel-plate capacitor of plate area 1.0 m$^{2}$ using paper (k = 3.7) of thickness 1.0 mm as a dielectric, how much electrical energy would it store at a plate voltage of 5 000 V?
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