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Two charge +Q,-Q are placed at the two v...

Two charge `+Q,-Q` are placed at the two vertices of an equilateral triangle of side `'a'`. Then the intensity of electric field at the third vertex is

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`E^(1)=2E"cos"(theta)/2=E(theta=120^(@))`

`E^(1)=1/(4 pi epsilon_(0)) Q/(a^(2))`
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NARAYNA-ELECTRIC CHARGES AND FIELDS-EXERCISE -4
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