JEE Main · PhysicsHard
An electric dipole of dipole moment is placed at a distance from an infinite line charge with linear charge density . The force on the dipole is
- A.
- B.
- C.
- D.
Show correct answer & step-by-step solution
Correct answer: A —
Solution
The electric field of an infinite line charge is . The force on a dipole is given by . Differentiating the field with respect to gives , so the magnitude is .
Attempt this question & track your score
Sign up free to answer, get instant scoring, and let SolveGini track which Physics topics you need to revise.
Attempt & Track Free →More Electrostatics practice questions
- Two point charges of 2 microcoulombs and 8 microcoulombs are placed 12 cm apart. The location of the neutral point where
- An electric dipole is placed in a uniform electric field. The net force on the dipole is:
- The electric potential at a distance r from a point charge q is given by:
- If the distance between two point charges is doubled, the electrostatic force between them becomes:
- The SI unit of electric flux is:
- Two point charges of 4 microcoulombs and -2 microcoulombs are separated by a distance of 1 meter in air. At what distanc
- A hollow metal sphere of radius 10 cm is charged such that the potential on its surface is 80 volts. What is the potenti
- An electric dipole is placed in a uniform electric field of magnitude 200 newtons per coulomb at an angle of 30 degrees
- Three charges each equal to q are placed at the corners of an equilateral triangle of side a. What is the electric field
- A parallel plate capacitor has plates of area 0.01 square meters separated by a distance of 0.001 meters. If the space b
- A solid non-conducting sphere of radius R has a volume charge density rho that varies with distance r from the center as
- A dipole with dipole moment p is placed at a distance r from along charged wire with linear charge density lambda. The f