A positive test charge is placed at the origin

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

Problem

A positive test charge is placed at the origin. A charge

+Q

is fixed at

(a,0)

and a charge

-2Q

(0,a)

. In which quadrant does the net electrostatic force on the test charge lie? (a) Third quadrant (

-x,-y

) (b) First quadrant (

+x,+y

) (c) Second quadrant (

-x,+y

) (d) Fourth quadrant (

+x,-y

)