Physics Class 10 Chapter 4 Short Notes

Complete Notes on Chapter No.13:  Physics Class 10 Chapter 4 Short Notes written by Mr. Adnan Haider. These computerized notes are very helpful in the preparation of Physics Class 10 Chapter 4 Short Notes for students of the Physics and these are according to the paper patterns of all Punjab boards.

• Important physics class 10 chapter 4 mcqs for all students of Punjab  Textbook Board.
• Electrostatics Exercise Multiple Choice Questions ( MCQs ) with correct Answers
• Electrostatics Exercise Short Questions with Answers.
• How electric charge is produced?
• Important physics mcqs for class 10 chapter 4 for all students of Punjab  Textbook Board.
• Define electrostatic induction. 
• What is a Gold leaf electroscope?
• How can a charge be detected on a body?
• Define Charge.
• Explain Coulomb’s law of electrostatics and write its mathematical form.
• What is meant by Electric field and Electric intensity?
• Important class 10 physics chapter 4 exercise solutions for all students of Punjab  Textbook Board.
• For what purpose electroscope is used?
• How would you define the Potential difference between the two points? Define its unit.
• What is meant by an electroscope?
• Important class 10 physics chapter 4 important questions for all students of Punjab  Textbook Board.
• What do you mean by the Capacitance of a capacitor? Define units of capacitance.
• Derive the formula for the equivalent capacitance for a series combination of a number of capacitors.
• Discuss different Types of Capacitors.
• What is the difference between variable and fixed-type capacitors?
• Enlist some Uses of capacitors.
• Important 10th class physics chapter 4 important questions for all students of Punjab  Textbook Board.
• Discuss one Application of static electricity.
• What are the Hazards of static electricity? 
• Write the use of a capacitor. 
• Important physics class 10 chapter 4 important questions for all students of Punjab  Textbook Board.
• What is the difference between a capacitor and a dielectric?
• In what direction will a positively charged particle move in an electric field?
• Define Volt? and Define electric potential.
• Important 10th class physics chapter 4 mcqs for all students of Punjab  Textbook Board.
• Describe two properties of electric lines of force.
• Define electric field lines.
• What is a unit of capacitance? Define it. 
• Important mcqs of physics class 10 chapter 4 for all students of Punjab  Textbook Board.
• Define electrolyte. Write two uses of electrostatics.
• How does a capacitor store charge?
• Distinguish between watt and kilowatt hour.
• Important mcqs test of physics class 10 chapter 4 for all students of Punjab  Textbook Board.
• Define electrostatics. 
• ELECTROSTATIC POTENTIAL: The gravitational potential at a point in the gravitational field is the gravitational potential energy of a unit mass placed at that point. Similarly, the electric potential at any point in the electric field is the electric potential energy of a unit positive charge placed at that point.
• Important 10 class physics chapter 4 mcqs for all students of Punjab  Textbook Board.
• Electric Potential: Electric potential at a point in an electric field is equal to the amount of work done in bringing a unit positive charge from infinity to that point. If W is the work done in moving a positive charge q from infinity to a certain point in the field, the electric potential V at this point would be given by  V = W / q
• Important class 10 physics chapter 4 mcqs with answers for all students of Punjab  Textbook Board.
• It implies that electric potential is measured relative to some reference point and like potential energy we can measure only the change in potential between two points. Electric potential is a scalar quantity. Its SI unit is volt which is equal to J C^-1.
• Important 10th class physics chapter 4 mcqs solved for all students of Punjab  Textbook Board.
• "If one joule of work is done against the electric field in bringing one coulomb positive charge from infinity to a point in the electric field then the potential at that point will be one volt".
• Thus, we define potential difference between two points as:
• Important 10th class physics chapter 4 exercise for all students of Punjab  Textbook Board.
• "The energy supplied by a unit charge as it moves from one point to the other in the direction of the field is called potential difference between two points".
• CAPACITORS AND CAPACITANCE: In order to store the charge, a device which is called capacitor is used. It consists of two thin metal plates, parallel to each other separated by a very small distance. The medium between the two plates is air or a sheet of some.
• Important physics class 10 chapter 4 full explanation for all students of Punjab  Textbook Board.
• The charges on each plate attract each other and thus remained bound within the plates. In this way, charge is stored in a capacitor for a long time. Also, the charge Q stored on plates is directly proportional to the potential difference V across the plates i.e. Q = CV  where C is the constant of proportionality, called the capacitance of the capacitor and is defined as the ability of the capacitor to store charge. It is given by the ratio of charge and the electric potential as: C = Q / V  SI unit of capacitance is farad (F), defined as:
• "If one coulomb of charge given to the plates of a capacitor produces a potential difference of one volt between the plates of the capacitor then its capacitance would be one farad".
• Important class 10th physics chapter 4 important notes for all students of Punjab  Textbook Board.