Physics · 2012
NEET 2012 · Prelims · Code A · Q30
Four point charges - Q, - q, 2q and 2Q are placed, one at each corner of the square. The relation between Q and q for which the potential at the…
Four point charges - Q, - q, 2q and 2Q are placed, one at each corner of the square. The relation between Q and q for which the potential at the centre of the square is zero is :
Official answer
(3)
$\displaystyle \mathrm{Q}=-\mathrm{q}$
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