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Calculate the electrostatic potential en...

Calculate the electrostatic potential energy for a system of three point charges q placed at the corners of an equilateral triangle of side ‘a’.

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Knowledge Check

  • Three point charges are placed at the corner of an equilateral triangle. Assuming only electrostatic forces are acting.

    A
    the system can never be in equilibrium
    B
    the system will be equilibrium if the charges rotate about the centre of the triangle
    C
    the system will be in equilibrium if the charges have different magnitudes and different signs
    D
    the system will be in equilibrium if the charges have the same magnitude but different signs.

  • The gravitational potential energy of a system of three particles of mass m each kept at the vertices of equilateral triangle of side x will be

    A
    `-(Gm^(2))/(x)`
    B
    `-(Gm^(2))/(3x)`
    C
    `-(3Gm^(2))/(x)`
    D
    `(3Gm^(2))/(x^(2))`

  • The gravitational potential energy of an isolated system of three particles, each of mass m , at the three corners of an equilateral triangle of side l is

    A
    `-(Gm^(2))/l`
    B
    `-(Gm^(2))/(2l)`
    C
    `-(2Gm^(2))/l`
    D
    `-(3Gm^(2))/l`

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