Short Tricks for Revision: Electrostatics

# Short Tricks for Revision: Electrostatics Video Lecture | Physics Class 12 - NEET

## Physics Class 12

157 videos|453 docs|185 tests

## FAQs on Short Tricks for Revision: Electrostatics Video Lecture - Physics Class 12 - NEET

 1. What is electrostatics?
Ans. Electrostatics is the branch of physics that studies the phenomena and properties of stationary electric charges. It deals with the behavior of charged particles at rest and the forces between them.
 2. How does electrostatic force differ from gravitational force?
Ans. Electrostatic force is much stronger than gravitational force. While gravitational force only depends on the masses of the objects involved, electrostatic force depends on the charges and the distance between them. Additionally, electrostatic force can be both attractive and repulsive, while gravitational force is always attractive.
 3. What is the formula for calculating the electrostatic force between two charges?
Ans. The formula for calculating the electrostatic force (F) between two charges (q1 and q2) is given by Coulomb's Law: F = k * (q1 * q2) / r^2, where k is the electrostatic constant and r is the distance between the charges.
 4. Can an insulator hold static charge?
Ans. Yes, insulators can hold static charge. Unlike conductors, which allow the free movement of charges, insulators do not allow the easy flow of charges. This makes it possible for insulators to accumulate static charge and hold it in one place.
 5. What is the significance of electric field in electrostatics?
Ans. Electric field is a fundamental concept in electrostatics. It describes the influence that a charged object exerts on the surrounding space. The electric field at a point is the force experienced by a positive test charge placed at that point. It helps in understanding the behavior of charges and their interactions in electrostatics.

## Physics Class 12

157 videos|453 docs|185 tests

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