Physics · Electric potential and its calculation for a point charge, electric dipole and system of charges
An equipotential line and a line of force are:
An equipotential line and a line of force are:
- A. perpendicular to each other
- B. parallel to each other
- C. in any direction
- D. at an angle of \( 45^{\circ} \)
Step-by-step solution
In electrostatics, lines of force (electric field lines) are always perpendicular to equipotential surfaces. This is because the electric field is the negative gradient of the potential, so it points in the direction of steepest decrease of potential, which is normal to equipotential surfaces.
Related MCQs
- Assertion At a point in space, the electric field points towards north. In the region, surrounding this point the rate of change of potentia…
- The potential at a point due to a charge of C located away is:…
- Two equal charges of magnitude each are placed at a distance d apart. Their electrostatic energy is E. A third charge is brought midway betw…
- The work done in moving a charge of 5 coulombs from a point at 230 volts to another point at 240 volts is.…
- If a charge is moved against the coulomb force of an electric field, then :…