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Three charges...

Question

Three charges each of magnitude $q$ are placed at the vertices of an equilateral triangle having side $l$ . The electrostatic force on an identical charge placed at the centroid of the triangle is

Zero

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\frac{1}{12 π ϵ_{o}} \frac{q^{2}}{l^{2}}

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\frac{1}{4 π ϵ_{o}} \frac{q^{2}}{l^{2}}

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\frac{1}{4 π ϵ_{o}} \frac{3 q^{2}}{l^{2}}

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Solution

The correct option is A Zero
The magnitude of forces are equal to each other and they are equally inclined with each other. Therefore, there resultant will be zero.

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Standard IX Physics

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Three charges each of magnitude q are placed at the vertices of an equilateral triangle having side l. The electrostatic force on an identical charge placed at the centroid of the triangle is

The correct option is A ZeroThe magnitude of forces are equal to each other and they are equally inclined with each other. Therefore, there resultant will be zero.

Three charges each of magnitude $q$ are placed at the vertices of an equilateral triangle having side $l$ . The electrostatic force on an identical charge placed at the centroid of the triangle is

The correct option is A Zero
The magnitude of forces are equal to each other and they are equally inclined with each other. Therefore, there resultant will be zero.