Home › Bihar Board Class 12 (Science) › Physics › Electric Charges and Fields › Far from a dipole, its field falls with distance…
Far from a dipole, its field falls with distance r as
A1/r
B1/r^2
C1/r^3
D1/r^4
Answer & Solution
Correct answer: C. 1/r^3
For r much greater than a, the dipole field varies as 1/r^3, faster than the 1/r^2 fall of a point charge.
Related questions
Outside a charged shell, the field acts as if charge wereThe field of an infinite uniformly charged plane sheet depends on distance how?A long wire has uniform linear charge density. Its field varies with distance r asA dipole sits inside a closed surface. The net flux through the surface isA charge sits at the centre of a cube. Flux through one face isA charge of 8.854 µC is inside a closed surface. What is the net flux?A dipole of moment 2 × 10^-8 C m lies across a 10^4 N/C field. Torque?The torque on a dipole of moment p in field E is largest when p is