A conducting sphere of radius $R$ is given a charge $Q$. The electric potential and the electric field at the centre of the sphere respectively are
Easy
Download our app for free and get started
At centre, $E = 0$ and $V = \frac{Q}{{4\pi \,{ \in _0}\,R}}$
Download our appand 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
- 1Two spherical conductors $A$ and $B$ of radii $a$ and $b$ $(b > a)$ are placed concentrically in air. The two are connected by a copper wire as shown in figure. Then the equivalent capacitance of the system isView Solution
- 2In the given figure the capacitors ${C_1},{C_3},{C_4},{C_5}$ have a capacitance $4\,\mu F$ each if the capacitor $C_2$ has a capacitance $10\,F$, then effective capacitance between $A$ and $B$ will be.....$\mu F$View Solution
- 3The potential of the point $A$ is greater than that of $B$ by $19\, volt$. What is the potential difference in volts across the $3\,\mu F$ capacitor ?View Solution
- 4What is the area of the plates of a $3\,F$ parallel plate capacitor, if the separation between the plates is $5\,mm$View Solution
- 5When air in a capacitor is replaced by a medium of dielectric constant $K$, the capacityView Solution
- 6A parallel plate condenser with oil between the plates (dielectric constant of oil $K = 2$) has a capacitance $C$. If the oil is removed, then capacitance of the capacitor becomesView Solution
- 7When a proton is accelerated through $1\,V$, then its kinetic energy will be.....$eV$View Solution
- 8A simple pendulum with a bob of mass $m = 1\ kg$ , charge $q = 5\mu C$ and string length $l = 1\ m$ is given a horizontal velocity $u$ in a uniform electric field $E = 2 × 10^6\ V/m$ at its bottom most point $A$ , as shown in figure. It is given a speed $u$ such that the particle leave the circular path at its topmost point $C$ . Find the speed $u$ . (Take $g = 10\ m/s^2$ )View Solution
- 9A hollow metallic sphere of radius $10 \;cm$ is charged such that potential of its surface is $80\; V$. The potential at the centre of the sphere would beView Solution
- 10Four capacitors of capacitance $10\,mF$ and a battery of $200\,V$ are arranged as shown. How much charge will flow through $AB$ after the switch $S$ is closed .....$\mu C$View Solution
