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Electrostatic Potential due to Point Charge Video Lecture | Physics for JAMB
FAQs on Electrostatic Potential due to Point Charge Video Lecture - Physics for JAMB
| 1. What is electrostatic potential? |  |
Ans. Electrostatic potential is the amount of work required to bring a unit positive charge from infinity to a specific point in an electric field created by a point charge. It is a scalar quantity and is measured in volts (V).
| 2. How is electrostatic potential calculated due to a point charge? | |
Ans. The electrostatic potential due to a point charge can be calculated using the formula V = kQ/r, where V is the electrostatic potential, k is the Coulomb's constant (9 x 10^9 N m^2/C^2), Q is the magnitude of the point charge, and r is the distance from the point charge to the specific point.
| 3. What is the significance of electrostatic potential due to a point charge? | |
Ans. The electrostatic potential due to a point charge helps in understanding the behavior of electric fields and the interaction between charges. It provides a measure of the potential energy associated with the charge at different points in space. It is also used to calculate the work done in moving charges within the electric field.
| 4. How does the electrostatic potential vary with distance from a point charge? | |
Ans. The electrostatic potential due to a point charge decreases with increasing distance from the charge. It follows an inverse relationship, where the potential decreases as the distance increases. This means that the potential is higher closer to the charge and lower farther away from it.
| 5. Can the electrostatic potential be negative? | |
Ans. Yes, the electrostatic potential can be negative. A negative potential indicates that the work done to bring a positive charge from infinity to the specific point is negative, meaning that work is done by the electric field. This occurs when the point charge is negative and repels the positive charge.
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