Advertisements
Advertisements
प्रश्न
The electrostatic potential energy of two-point charges, 1 µC each, placed 1 meter apart in the air is:
पर्याय
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
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?
Guess a possible reason why water has a much greater dielectric constant (= 80) than say, mica (= 6).
Obtain an expression for an intensity of electric field at a point at the end of position, i.e., the axial position of an electric dipole.
x
Why must electrostatic field be normal to the surface at every point of a charged conductor?
Two-point charges placed in a medium of dielectric constant 5 are at a distance r between them, experience an electrostatic force ‘F’. The electrostatic force between them in vacuum at the same distance r will be ____________.
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 ______.
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