Equal positive point charges of magnitude are fixed at each of the six vertices of a…

PHYSICS · Single correct · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

Equal positive point charges of magnitude

q

are fixed at each of the six vertices of a regular hexagon of side

a

. What is the magnitude of the net electric field at the centre of the hexagon? (a)

\dfrac{kq}{a^{2}}

(b)

0

(c)

\dfrac{6kq}{a^{2}}

(d)

\dfrac{3kq}{a^{2}}