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Three small charges of equal magnitude and same sign lie on the circumference of a circle forming an equilateral triangle. What is the value of electric field at the centre of circle ?
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As shown in electrical fields at the centre of circle due to three charges are ` E_A ,E_B and E_C ` whose magnitudes are equal. As these intensities are being represented by three vectors of same magnitude and making an angle of `120^(@) ` from one another, the resultant field
` oversetto E =oversetto (E_A) +oversetto (E_B) +oversetto (E_C) =oversetto 0`
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