Short Tricks: Electrostatics Potential

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

## Physics Class 12

158 videos|453 docs|185 tests

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

 1. What is electrostatic potential?
Ans. Electrostatic potential is the amount of work done to bring a unit positive charge from infinity to a specific point in an electric field. It is a scalar quantity and is measured in volts (V).
 2. How is electrostatic potential different from electric potential energy?
Ans. Electric potential energy is the energy possessed by a charged object due to its position in an electric field, whereas electrostatic potential is the potential energy per unit charge at a specific point in an electric field. In other words, electrostatic potential is the electric potential energy per unit charge.
 3. How is the electrostatic potential calculated?
Ans. The electrostatic potential at a point is calculated by dividing the electric potential energy at that point by the magnitude of the charge. Mathematically, it can be expressed as V = U / q, where V is the electrostatic potential, U is the electric potential energy, and q is the charge.
 4. Can the electrostatic potential at a point be negative?
Ans. Yes, the electrostatic potential at a point can be negative. It indicates that the work done in bringing a positive test charge from infinity to that point is negative, indicating a decrease in potential energy. A negative potential usually occurs when the point is closer to a negatively charged object.
 5. What is the significance of equipotential surfaces in electrostatics?
Ans. Equipotential surfaces are imaginary surfaces where the electrostatic potential remains constant. These surfaces are perpendicular to the electric field lines and help in visualizing the distribution of electric potential in a given region. The work done in moving a charge on an equipotential surface is zero, as the potential remains constant. Equipotential surfaces also assist in understanding the behavior of electric fields and the movement of charges in electrostatic systems.

## Physics Class 12

158 videos|453 docs|185 tests

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