A spherical conductor of radius $2\,m$ is charged to a potential of $120\,V.$ It is now placed inside another hollow spherical conductor of radius $6\,m.$ Calculate the potential to which the bigger sphere would be raised......$V$
  • A$20$
  • B$60$
  • C$80$
  • D$40$
Medium
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
    The combination of capacitors with ${C_1} = 3\,\mu \,F,\,{C_2} = 4\,\mu \,F$ and ${C_3} = 2\,\mu \,F$ is charged by connecting $AB$ to a battery. Consider the following statements

    $I.$ Energy stored in ${C_1}$ $=$ Energy stored in ${C_2}$ $+$ Energy stored in ${C_3}$

    $II.$ Charge on ${C_1}$ $=$ Charge on ${C_2}$ $+$ Charge on ${C_3}$

    $III.$ Potential drop across ${C_1}$ $=$ Potential drop across ${C_2}$ $=$ Potential drop across ${C_3}$

    Which of these is/are correct

    View Solution
  • 2
    A $500 \,\mu F$ capacitor is charged at a steady rate of $100\, \mu C/sec$. The potential difference across the capacitor will be $10\, V$ after an interval of.....$sec$
    View Solution
  • 3
    A $2\, \mu F$ capacitor $C _{1}$ is first charged to a potential difference of $10\, V$ using a battery.Then the battery is removed and the capacitor is connected to an uncharged capacitor $C _{2}$ of $8\, \mu F$. The charge in $C _{2}$ on equilibrium condition is $\ldots\,\mu C$. (Round off to the Nearest Integer)
    View Solution
  • 4
    A parallel plate air capacitor is charged to a potential difference of $V$. After disconnecting the battery, distance between the plates of the capacitor is increased using an insulating handle. As a result, the potential difference between the plates
    View Solution
  • 5
    Consider a thin spherical shell of radius $R$ with its centre at the origin, carrying uniform positive surface charge density. The variation of the magnitude of the electric field $|\vec{E}(r)|$ and the electric potential $V(r)$ with the distance r from the centre, is best represented by which graph?
    View Solution
  • 6
    Three equal capacitors, each with capacitance $C$ are connected as shown in figure. Then the equivalent capacitance between $A$ and $B$ is
    View Solution
  • 7
    The adjacent diagram shows a charge $+Q$ held on an insulating support $S$ and enclosed by a hollow spherical conductor. $O$ represents the centre of the spherical conductor. and $P$ is a point such that $OP = x $ and $SP = r$ . The electric field at point $P$  will be
    View Solution
  • 8
    An electric dipole is placed as shown in the figure.The electric potential (in $10^2\,V$ ) at point $P$ due to the dipole is $\left(\in_0=\right.$ permittivity of free space and $\left.\frac{1}{4 \pi \in_0}=K\right)$ :
    View Solution
  • 9
    The capacity of a parallel plate condenser is $10\,\mu \,F$, when the distance between its plates is $8 \,cm$. If the distance between the plates is reduced to $4\, cm$, then the capacity of this parallel plate condenser will be.........$\mu \,F$
    View Solution
  • 10
    Equipotential surfaces associated with an electric field which is increasing in magnitude along the $x$-direction are
    View Solution