As shown in the figure, charges $ + q$ and $ - q$ are placed at the vertices $B$ and $C$ of an isosceles triangle. The potential at the vertex $A$ is
  • A$\frac{1}{{4\pi {\varepsilon _0}}}.\frac{{2q}}{{\sqrt {{a^2} + {b^2}} }}$
  • B
    Zero
  • C$\frac{1}{{4\pi {\varepsilon _0}}}.\frac{q}{{\sqrt {{a^2} + {b^2}} }}$
  • D$\frac{1}{{4\pi {\varepsilon _0}}}.\frac{{( - q)}}{{\sqrt {{a^2} + {b^2}} }}$
AIIMS 2002, Easy
art

Download our app
and get started for free

Experience the future of education. Simply download our apps or reach out to us for more information. Let's shape the future of learning together!No signup needed.*

Similar Questions

  • 1
    A simple pendulum of mass $'m',$ length $'I'$ and charge $'+q'$ suspended in the electric field produced by two conducting parallel plates as shown. The value of deflection of pendulum in equilibrium position will be -
    View Solution
  • 2
    Assertion : If three capacitors of capacitances $C_1 < C_2 < C_3$ are connected in parallel then their equivalent capacitance $C_P > C_S$.

    Reason : $\frac{1}{{{C_p}}} = \frac{1}{{{C_1}}} + \frac{1}{{{C_2}}} + \frac{1}{{{C_3}}}$

    View Solution
  • 3
    The diagram shows a small bead of mass $m$ carrying charge $q$. The bead can freely move on the smooth fixed ring placed on a smooth horizontal plane. In the same plane a charge $+Q$ has also been fixed as shown. The potential atthe point $P$ due to $+Q$ is $V$. The velocity with which the bead should projected from the point $P$ so that it can complete a circle should be greater than
    View Solution
  • 4
    Potential at a point $x$-distance from the centre inside the conducting sphere of radius $R$ and charged with charge $Q$ is
    View Solution
  • 5
    Force of attraction between the plates of a parallel plate capacitor is
    View Solution
  • 6
    A particle has a mass $400$ times than that of the electron and charge is double than that of a electron. It is accelerated by $5\,V$ of potential difference. Initially the particle was at rest, then its final kinetic energy will be......$eV$
    View Solution
  • 7
    The electric field $\vec E$ between two points is constant in both magnitude and direction. Consider a path of length d at an angle $\theta = 60^o$ with respect to field lines shown in figure. The potential difference between points $1$ and $2$ is
    View Solution
  • 8
    When a dielectric material is introduced between the plates of a charges condenser, then electric field between the plates
    View Solution
  • 9
    Electric charges of $+10\,\mu\, C, +5\,\mu\, C, -3\,\mu\, C$ and $+8\,\mu\, C$ are placed at the corners of a square of side$\sqrt 2\,m$ . The potential at the centre of the square is
    View Solution
  • 10
    In the connections shown in the adjoining figure, the equivalent capacity between $A$ and $B$ will be......$\mu F$
    View Solution