Ant asked in Science & MathematicsPhysics · 2 months ago

Four equal negative charges, of magnitude 3C are situated at the corners of a square, with a length of side equal to 5. A small test charge ?

of 0.09Coulombs is placed in the exact centre of the square. What is the magnitude of the potential energy of the test charge? Give your answer in GJ

please show step by step workings

1 Answer

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  • NCS
    Lv 7
    2 months ago
    Favourite answer

    For this configuration and assuming the side length is 5 m,

    PE = 4kQq / d

    PE = 4*8.99e9N·m²/C²*3C*0.09C / (5m / √2)

    PE = 2.7 GJ

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