Electrostatics

Related Questions

• Dielectric constant for metal is

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• Two charges $+ 5\mu C$ and $+ 10\mu C$ are placed 20 cm apart. The net electric field at the mid-Point between the two charges is

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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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• Cathode rays travelling from east to west enter into region of electric field directed towards north to south in the plane of paper. The deflection of cathode rays is towards

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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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