A test charge is located at

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

Problem

A

+2.0\,\mu\text{C}

test charge is located at

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

. Two source charges are fixed at

(0,0)

with charge

+5.0\,\mu\text{C}

and at

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

with charge

-3.0\,\mu\text{C}

. What is the

y

-component of the net electric force on the test charge? (Positive

y

is upward.) (a)

+0.22\,\text{N}

(b)

-0.38\,\text{N}

(c)

+0.38\,\text{N}

(d)

-0.16\,\text{N}

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