Magnetism – Physics Unit 5 – Class 12 – Maharashtra Board

Magnetism – Unit V consists of three chapters:

1. Chapter 10 – Magnetic Fields due to Electric Current
2. Chapter 11 – Magnetic Materials
3. Chapter 12 – Electromagnetic Induction

After studying the content, students would be able to

• Realize that Lorentz force law is the basis for defining unit of magnetic field.
• Visualize cyclotron motion of a charged particle in a magnetic field.
• Analyze and calculate magnetic force on a straight and arbitrarily shaped current carrying wires and a closed wire circuit.
• Apply the Biot-Savart law to calculate the magnetic field produced by various distributions of currents.
• Use Ampere’s law to get magnetic fields produced by a current distribution.
• Compare gravitational, magnetic and electrostatic potentials.
• Distinguish between paramagnitic, diamagnetic and ferromagnetic materials.
• Relate the concept of flux to experiments of Faraday and Henry.
• Relate Lenz’s law to the conservation of energy.
• Visualize the concept of eddy currents.
• Determine the mutual inductance of a given pair of coils.
• Apply laws of induction to explain the working of a generator.
• Establish a relation between the power dissipated by an AC current in a resistor and the value of the rms current.
• Visualize the concept of phases to represent AC current.
• Explain the passage of AC current through circuits having resistors, capacitors and inductors.
• Explain the concept of resonance in LCR circuits.