Class 10 Physics Chapter 6 Notes

Complete Notes on Chapter No.15:  class 10 physics chapter 6 notes written by Mr. Tayyab Shahzad These computerized notes are very helpful in the preparation of class 10 physics chapter 6 notes for students of Physics and these are according to the paper patterns of all Punjab boards.

• Important physics chapter 6 class 10 notes for all students of Punjab  Textbook Board.
• Electromagnetism Exercise Multiple Choice Questions ( MCQs ) with Correct Answers
• Electromagnetism Exercise Short Questions with Answers.
• What is meant by the intensity of the magnetic field?
• Important physics class 10 chapter 6 notes for all students of Punjab  Textbook Board.
• State and explain the Right Hand Grip Rule.
• Define the principle of A.C generator.
• Under what conditions the magnetic flux will be minimum and maximum?
• Important chapter 6 physics class 10 notes for all students of Punjab  Textbook Board.
• Write the use of a relay.
• What is an Electric Motor?
• Define electromagnet. 
• Important class 10 physics chapter 6 notes pdf for all students of Punjab  Textbook Board.
• Write two factors affecting induced E.M.F.
• State Lenz’s law?
• What do you understand by the term Mutual Induction?
• Important 10th physics notes for class 10 chapter 6 for all students of Punjab  Textbook Board.
• What is a Transformer?
• Define electromagnetism.
• What is meant by solenoid?
• Important notes for class 10 physics chapter 6 for all students of Punjab  Textbook Board.
• Which device is used for converting electrical energy into mechanical energy?
• Describe Fleming’s left-hand rule.
• What is the difference between a generator and a motor?
• Important physics notes for class 10 chapter 6 numericals for all students of Punjab  Textbook Board.
• Define electromagnetic induction.
• Can a transformer operate on direct current?
• How many coils are used in a transformer?
• Important 10th class physics chapter 15 notes for all students of Punjab  Textbook Board.
• Define step-up transformer.
• Define step-down transformer.
• Define armature.
• Important 10th class physics chapter 15 mcqs for all students of Punjab  Textbook Board.
• Define the ideal transformer.
• Write two ways to increase the magnetic force.
• How the direction of magnetic field lines is determined in current carrying straight wire?
• Important 10th class physics chapter 15 short questions for all students of Punjab  Textbook Board.
• What is the function of split rings in the D.C. motor?
• "The process of generating an induced current in a circuit by changing the number of magnetic lines of force passing through it is called electromagnetic induction".
• Important 10th class physics chapter 15 numericals solved for all students of Punjab  Textbook Board.
• Phenomenon of electromagnetic induction by the movement of a magnet through solenoid. (a) Magnet moves towards the stationary solenoid (b) Magnet moves away from the stationary solenoid.
• From the above experiments, we conclude that an e.m.f. is induced in the coil when there is a relative motion between the coil and the magnet. This phenomenon in which an e.m.f. is induced due to the relative motion between the coil and the magnet is called electromagnetic induction.
• Important class 10th physics chapter 15 important questions for all students of Punjab  Textbook Board.
• "The value of induced e.m.f. in a circuit is directly proportional to the rate of change of number of magnetic lines of force through it".
• This is called Faraday's law of electromagnetic induction.
• Factors Affecting Induced e.m.f: The magnitude of induced e.m.f. in a circuit depends on the following factors:
• Important physics class 10th chapter 6 notes for all students of Punjab  Textbook Board.
• Speed of relative motion of the coil and the magnet. Number of turns of the coil
• Direction of induced e.m.f. – Lenz’s Law: Lenz devised a rule to find out the direction of a current induced in a circuit. 
• The direction of an induced current in a circuit is always such that it opposes the cause that produces it.
• Important physics class 10 notes chapter 6 for all students of Punjab  Textbook Board.
• If we apply the law of conservation of energy to electromagnetic induction, we realize that the electrical energy induced in a conductor comes from the kinetic energy of the moving magnet. We do some work on the magnet to bring it close to the solenoid. This work consequently appears as electrical energy in the conductor. Thus, mechanical energy of our hand used to push the magnet towards or away from the coil results into electrical energy. Hence, Lenz’s law is a manifestation of the law of conservation of energy.
• A.C. GENERATOR: If a coil is rotated in a magnetic field, a current will be induced in the coil. The strength of this induced current depends upon the number of magnetic lines of force passing through the coil. The number of lines of magnetic force passing through the coil will be maximum when the plane of the coil is perpendicular to the lines of magnetic force. The number of lines of magnetic force will be zero when plane of the coil is parallel to the lines of force. Thus, when a coil rotates in a magnetic field, the induced current in it continuously changes from maximum to minimum value and from minimum to maximum value and so on. This is the basic principle on which an A.C generator works.