Define the term electric potential due to a point charge. Calculate the electric potential at the centre of a square of side $\sqrt{2} m,$ having charge 100 μC, – 50 μC, 20 μC and – 60 μC at the four corners of the square.

The amount of work required to carry a unit positive charge with zero acceleration from infinity to a point in electric field against the electrostatic forces is termed as electric potential at that point.

Diagonal of the square =

square root of open parentheses square root of 2 close parentheses squared plus open parentheses square root of 2 close parentheses squared end root space equals space 2 straight m

straight r space equals space Half space diagonal space space equals space 1 space straight m

Potential at the centre of the square,

box enclose straight V space equals space kg over straight r end enclose

straight V space equals space 9 space cross times space 10 to the power of 9 space open square brackets fraction numerator 100 space cross times space 10 to the power of negative 6 end exponent over denominator 1 end fraction minus fraction numerator 50 space cross times space 10 to the power of negative 6 end exponent over denominator 1 end fraction plus fraction numerator 20 space cross times space 10 to the power of negative 6 end exponent over denominator 1 end fraction minus fraction numerator 60 space cross times space 10 to the power of negative 6 end exponent over denominator 1 end fraction close square brackets space space space space equals space 9 space cross times space 10 to the power of 9 space cross times 10 to the power of negative 6 end exponent space cross times 10 space space space

straight V space equals space 9 space cross times space 10 to the power of 4 straight V.

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Electrostatic Potential and Capacitance

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Define the term electric potential due to a point charge. Calculate the electric potential at the centre of a square of side 2m, having charge 100 μC, – 50 μC, 20 μC and – 60 μC at the four corners of the square.

Electrostatic Potential and Capacitance

Physics Part I

Define the term electric potential due to a point charge. Calculate the electric potential at the centre of a square of side $\sqrt{2} m,$ having charge 100 μC, – 50 μC, 20 μC and – 60 μC at the four corners of the square.