Three point charges are fixed in the -plane as follows: at

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

Problem

Three point charges are fixed in the

xy

-plane as follows:

+1.5\,\mu\text{C}

( -0.60\,\text{m},0)

+1.5\,\mu\text{C}

(+0.60\,\text{m},0)

, and

-1.5\,\mu\text{C}

at the origin. Along the

y

-axis (

x=0

), at what positive value of

y

is the electric potential equal to zero? (a)

0.60\,\text{m}

(b)

0.35\,\text{m}

(c)

0.78\,\text{m}

(d)

0.30\,\text{m}