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Electrostatics - Class 12 PDF Download
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FAQs on Electrostatics - Class 12
| 1. What is electrostatics in Class 12 Physics? |  |
Ans. Electrostatics is a branch of physics that deals with the study of electric charges at rest. It involves the study of various phenomena related to electric charges, such as the behavior of charged particles, electric fields, electric potential, and capacitance.
| 2. What are the fundamental principles of electrostatics? | |
Ans. The fundamental principles of electrostatics are:
1. Like charges repel, and unlike charges attract: This principle states that two like charges repel each other, while two unlike charges attract each other.
2. Coulomb's Law: Coulomb's law states that the force between two charged particles is directly proportional to the product of their charges and inversely proportional to the square of the distance between them.
3. Electric Field: Electric field is a vector quantity that describes the force experienced by a test charge in the presence of other charges. The electric field is directly proportional to the magnitude of the charge and inversely proportional to the square of the distance from the charge.
| 3. What is the unit of electric charge in electrostatics? | |
Ans. The unit of electric charge in the International System of Units (SI) is the coulomb (C). It is defined as the charge transferred by a current of one ampere flowing for one second.
| 4. How can we calculate the electric field due to a point charge? | |
Ans. The electric field due to a point charge can be calculated using Coulomb's law. The formula to calculate the electric field (E) at a point in space due to a point charge (Q) is given by E = k(Q/r^2), where k is the electrostatic constant (9 × 10^9 Nm^2/C^2) and r is the distance between the point and the charge.
| 5. What is the concept of electric potential in electrostatics? | |
Ans. Electric potential is a scalar quantity that represents the potential energy per unit charge at a point in an electric field. It is also known as voltage. The electric potential at a point is defined as the work done per unit charge in bringing a positive test charge from infinity to that point. The unit of electric potential in SI is the volt (V).
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Document Description: Electrostatics for Class 12 2024 is part of Class 12 preparation. The notes and questions for Electrostatics have been prepared according to the Class 12 exam syllabus. Information about Electrostatics covers topics like and Electrostatics Example, for Class 12 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for Electrostatics.
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