Advertisements
Advertisements
प्रश्न
The electrostatic potential energy of two-point charges, 1 µC each, placed 1 meter apart in the air is:
विकल्प
9 ×103 J
9 ×109J
9 ×10-3 J
9 ×10-3 eV
उत्तर
The electrostatic potential energy of two-point charges, 1 µC each, placed 1 meter apart in the air is 9 ×109J.
APPEARS IN
संबंधित प्रश्न
Three point charges, + Q + 2Q and – 3Q are placed at the vertices of an equilateral triangle ABC of side l. If these charges are displaced to the mid-point A1, B1 and C1, respectively, find the amount of the work done in shifting the charges to the new locations.
In a hydrogen atom, the electron and proton are bound at a distance of about 0.53 Å:
(a) Estimate the potential energy of the system in eV, taking the zero of the potential energy at infinite separation of the electron from proton.
(b) What is the minimum work required to free the electron, given that its kinetic energy in the orbit is half the magnitude of potential energy obtained in (a)?
(c) What are the answers to (a) and (b) above if the zero of potential energy is taken at 1.06 Å separation?
What is the work done by the field of a nucleus in a complete circular orbit of the electron? What if the orbit is elliptical?
We know that electric field is discontinuous across the surface of a charged conductor. Is electric potential also discontinuous there?
Three point charges +2, +2, and +5µC are placed respectively at the vertices A, B, C of an equilateral triangle of side 0.2 m. The magnitude of the force experienced by the charge at C is ______.
A work of 100 joule is performed in carrying a charge of 5 coulomb form infinity to a particular. point in an' electrostatic field. The potential of this point is:-
In bringing one electron towards another electrons, the electrostatic potential energy of the system will.
In a region of constant potential ______.
- the electric field is uniform
- the electric field is zero
- there can be no charge inside the region
- the electric field shall necessarily change if a charge is placed outside the region
A point charge q0 is moving along a circular path of radius a, with a point charge Q at the centre of the circle. The kinetic energy of q0 is ______.
