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प्रश्न
Which of the following is NOT the property of equipotential surface?
पर्याय
They do not cross each other.
The rate of change of potential with distance on them is zero.
For a uniform electric field, they are concentric spheres.
They can be imaginary spheres.
The work done in carrying a charge from one point to another on an equipotential surface is zero.
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उत्तर
For a uniform electric field, they are concentric spheres.
Explanation:
As all other statements are correct. In a uniform electric field, equipotential surfaces are never concentric spheres but are planes ⊥ to Electric field lines.
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संबंधित प्रश्न
A regular hexagon of side 10 cm has a charge 5 µC at each of its vertices. Calculate the potential at the centre of the hexagon.
Two charges 2 μC and −2 µC are placed at points A and B 6 cm apart.
- Identify an equipotential surface of the system.
- What is the direction of the electric field at every point on this surface?
The discharging current in the atmosphere due to the small conductivity of air is known to be 1800 A on an average over the globe. Why then does the atmosphere not discharge itself completely in due course and become electrically neutral? In other words, what keeps the atmosphere charged?
What are the forms of energy into which the electrical energy of the atmosphere is dissipated during a lightning?
(Hint: The earth has an electric field of about 100 Vm−1 at its surface in the downward direction, corresponding to a surface charge density = −10−9 C m−2. Due to the slight conductivity of the atmosphere up to about 50 km (beyond which it is good conductor), about + 1800 C is pumped every second into the earth as a whole. The earth, however, does not get discharged since thunderstorms and lightning occurring continually all over the globe pump an equal amount of negative charge on the earth.)
Depict the equipotential surfaces for a system of two identical positive point charges placed a distance(d) apart?
Draw the equipotential surfaces due to an electric dipole.
A particle of mass 'm' having charge 'q' is held at rest in uniform electric field of intensity 'E'. When it is released, the kinetic energy attained by it after covering a distance 'y' will be ______.
Consider the following statements and select the correct statement(s).
- Electric field lines are always perpendicular to equipotential surface.
- No two equipotential surfaces can intersect each other.
- Electric field lines are in the direction of tangent to an equipotential surface.
Can two equipotential surfaces intersect each other?
