A point charge of is located at

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

Problem

A point charge of

-2\,\mu\text{C}

is located at

(0.30\,\text{m},\,0.20\,\text{m})

. Two other charges are fixed at

(0,0)

and

(0,0.40\,\text{m})

, having values

+3\,\mu\text{C}

and

-3\,\mu\text{C}

respectively. What is the

y

-component of the net electrostatic force on the

-2\,\mu\text{C}

charge?

(k = 9 \times 10^9\,\text{N m}^2\!\text{/C}^2)

(a)

0.46\,\text{N}

upward (b)

0.34\,\text{N}

downward (c)

0.46\,\text{N}

downward (d)

0.23\,\text{N}

downward

Related theory

Browse the problem library