Practice portal › Electric Charge and Properties › Electric Dipole
Asked in GSEB Board July 2022 · Dipole moment and dipole field
Idea: a point (ideal) dipole has negligible size but a finite dipole moment p=q×2a.
Negligible size means the separation shrinks: 2a→0.
To keep p=q×2a finite while 2a→0, the charge must grow without limit: q→∞.
So a point dipole is the limit 2a→0, q→∞, with the product q×2a held fixed.
Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.
Practise this with a timer