Electrostatics

Related Questions

• The points resembling equal potentials are

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• Four identical charges $+ \,50\,\mu C$ each are placed, one at each corner of a square of side $2\,m$. How much external energy is required to bring another charge of $+ \,50\,\mu C$ from infinity to the centre of the square$\left( {{\rm{Given}}\frac{{\rm{1}}}{{{\rm{4}}\pi {\varepsilon _{\rm{0}}}}} = 9 \times {{10}^9}\frac{{N{m^2}}}{{{C^2}}}} \right)$

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• If $4 \times {10^{20}}eV$ energy is required to move a charge of 0.25 coulomb between two points. Then what will be the potential difference between them

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• Three charges \[4q, Q\] and \[q\] are in a straight line in the position of 0, \[l/2\] and \[l\] respectively. The resultant force on \[q\] will be zero, if \[Q = \]

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• If identical charges $( - q)$ are placed at each corner of a cube of side b, then electric potential energy of charge $( + q)$ which is placed at centre of the cube will be

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