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Revision Notes for Class 12 Physics Chapter 5 Magnetism and Matter
Class 12 Physics students should refer to the following concepts and notes for Chapter 5 Magnetism and Matter in Class 12. These exam notes for Class 12 Physics will be very useful for upcoming class tests and examinations and help you to score good marks
Chapter 5 Magnetism and Matter Notes Class 12 Physics
LEVEL I
Q. 1. The vertical component of Earth's magnetic field at a place is 3 times the horizontal component. What is the value of angle of dip at this place?
Q. 2. A short bar magnet placed with its axis at 30o to a uniform magnetic field of 0.2 T experiences a torque of 0.06 Nm. (i) Calculate the magnetic moment of the magnet. (ii) Find out what orientation of the magnet corresponds to its stable equilibrium in the magnetic field.
Q. 3. A solenoid has a core of a material with relative permeability 400. The winding of the solenoid are insulated from the core and carry a current of 2 A. If the number of turns is 1000 per meter, calculate (i) H, (ii) M and (iii) B.
Q. 4. In the Bohr model of hydrogen atom, an electron revolves around the nucleus in a circular orbit of radius 5.11 x 10-11 m at a frequency of 6.8 x 1015 Hz. What is the magnetic field at the centre of the orbit?
Q. 5. Two long parallel wires carrying currents 8 A and 5 A in the same direction are separated by a distance of 4 cm. Estimate the force on 10 cm length of one wire due to the other wire.
Please click the link below to download CBSE Class 12 Phyiscs - Magnetic effects of currents and magnetism Formulae
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CBSE Class 12 Physics Chapter 5 Magnetism and Matter Notes
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