Questions in electrostatics

SelectQuestion
At a certain distance from a point charge the electric field is $500\,V/m$and the potential is $3000\,V$. What is this distance
The magnitude of electric field $E$in the annular region of a charged cylindrical capacitor
A metallic solid sphere is placed in a uniform electric field. The lines of force follow the path(s) shown in figure as
The distance between a proton and electron both having a charge $1.6 \times {10^{ - 19}}coulomb$, of a hydrogen atom is ${10^{ - 10}}metre$. The value of intensity of electric field produced on electron due to proton will be
What is the magnitude of a point charge due to which the electric field $30\,cm$ away has the magnitude $2\,newton/coulomb$ $[1/4\pi {\varepsilon _0} = 9 \times {10^9}N{m^2}/{C^2}]$
Two charge $+ \,q$ and $- \,q$ are situated at a certain distance. At the point exactly midway between them
Two positive charges of 20 $coulomb$ and $Q\;coulomb$ are situated at a distance of $60\,cm$. The neutral point between them is at a distance of $20\,cm$ from the $20\,coulomb$ charge. Charge $Q$ is
In the figure the charge $Q$ is at the centre of the circle. Work done is maximum when another charge is taken from point $P$ to
A mass $m = 20\,g$h as a charge $q = 3.0\,mC$. It moves with a velocity of $20\,m/s$ and enters a region of electric field of $80\,N/C$ in the same direction as the velocity of the mass. The velocity of the mass after 3 seconds in this region is
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$\left( {{\rm{Given}}\frac{{\rm{1}}}{{{\rm{4}}\pi {\varepsilon _{\rm{0}}}}} = 9 \times {{10}^9}\frac{{N{m^2}}}{{{C^2}}}} \right)$

View Selected Questions (0)

Back to Categories

Back to Home