MEDIUM
12th West Bengal Board
IMPORTANT
Earn 100

What is cyclotron frequency? Find its value and explain its characteristics.

Important Questions on Electromagnetism

EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 8 - Electromagnetism>EXERCISE 8>Q 20

With the help of a labelled diagram, explain the principle of a moving coil galvanometer.

HARD
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 8 - Electromagnetism>EXERCISE 8>Q 21
With the help of a diagram, explain the principle and working of a cyclotron. Show that cyclotron frequency does not depend on the speed of the particles.
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 8 - Electromagnetism>EXERCISE 8>Q 22
Depict the magnetic field lines due to two straight long parallel conductors carrying currents I1 and I2 in the same direction. Hence, deduce an expression for the force acting per unit length on one conductor due to the other. Is this force attractive or repulsive? Hence, define one ampere.
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 8 - Electromagnetism>EXERCISE 8>Q 23
A particle with a mass m and charge q moving in a straight line with a velocity v in the plane of the paper enters a uniform magnetic field B acting perpendicular to the plane of the paper. Deduce expressions for the radius of the circular path in which it travels,
 
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 8 - Electromagnetism>EXERCISE 8>Q 23
A particle with a mass m and charge q moving in a straight line with a velocity ' 'v' in the plane of the paper enters a uniform magnetic field 'B' acting perpendicular to the plane of the paper. Deduce expressions for the time period of revolution 
 
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 8 - Electromagnetism>EXERCISE 8>Q 23
A particle with a mass m and charge q moving in a straight line with a velocity 'v' in the plane of the paper enters a uniform magnetic field 'B' acting perpendicular to the plane of the paper. Deduce expressions for the Kinetic energy of the particle. Why the kinetic energy of the particle does not change, while moving in the magnetic field? 
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 8 - Electromagnetism>EXERCISE 8>Q 24
Write down the expression for the force of attraction of two very long parallel conductors carrying currents.
EASY
12th West Bengal Board
IMPORTANT
A Text Book of PHYSICS PART 2 : CLASS 12>Chapter 8 - Electromagnetism>EXERCISE 8>Q 24
 Write down the expression for the force on a charge particle moving in a magnetic field. Then define tesla, the unit of magnetic field from these two expressions.