Question Number 39623 by NECx last updated on 08/Jul/18
$${Two}\:{equal}\:{charges}\:{q}_{\mathrm{1}} ={q}_{\mathrm{2}\:} =−\mathrm{6}\mu{C} \\ $$$${are}\:{on}\:{the}\:{y}−{axis}\:{at}\:{y}_{\mathrm{1}} =\mathrm{3}{cm}\:{and} \\ $$$${y}_{\mathrm{2}} =−\mathrm{3}{cm}. \\ $$$$\left.{i}\right){What}\:{is}\:{the}\:{magnitude}\:{and} \\ $$$${direction}\:{of}\:{the}\:{electric}\:{field}\:{on}\:{the} \\ $$$${x}−{axis}\:{at}\:{x}=\:\mathrm{4}{cm}, \\ $$$$\left.{ii}\right){if}\:{a}\:{test}\:{charge}\:{q}_{\mathrm{0}} =\mathrm{2}\mu{C}\:{is}\:{plqced} \\ $$$${at}\:{x}=\mathrm{4}{cm},{find}\:{the}\:{force}\:{the}\:{net} \\ $$$${charge}\:{experiences}. \\ $$