A sphere of $4\, cm$ radius is suspended within a hollow sphere of $6\, cm$ radius. The inner sphere is charged to potential $3\, e.s.u.$ and the outer sphere is earthed. The charge on the inner sphere is.....$e.s.u.$
Diffcult
Download our app for free and get started
(d) Suppose charge on inner sphere is $+Q$ as shown.
Potential on inner sphere
$V = \frac{Q}{4} - \frac{Q}{6}$
$==>$ $3 = Q\,\left( {\frac{1}{4} - \frac{1}{6}} \right)$ $==>$ $Q = 36\,e.s.u.$
Potential on inner sphere
$V = \frac{Q}{4} - \frac{Q}{6}$
$==>$ $3 = Q\,\left( {\frac{1}{4} - \frac{1}{6}} \right)$ $==>$ $Q = 36\,e.s.u.$
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
- 1Figure shows a solid metal sphere of radius $‘a’$ surrounded by a concentric thin metal shell of radius $2a$ . Initially both are having charges $Q$ each. When the two are connected by a conducting wire as shown in the figure, then amount of heat produced in this process will beView Solution
- 2View SolutionWhich of the following figure shows the correct equipotential surfaces of a system of two positive charges?
- 3A $2\,\mu F$ capacitor is charged to $100$ $volt$ and then its plates are connected by a conducting wire. The heat produced is........$J$View Solution
- 4The capacitance of a parallel plate capacitor is $5\, \mu F$ . When a glass slab of thickness equal to the separation between the plates is introduced between the plates, the potential difference reduces to $1/8$ of the original value. The dielectric constant of glass isView Solution
- 5At a distance $l$ from a uniformly charged long wire, a charged particle is thrown radially outward with a velocity $u$ in the direction perpendicular to the wire. When the particle reaches a distance $2 l$ from the wire, its speed is found to be $\sqrt{2} u$. The magnitude of the velocity, when it is a distance $4 l$ away from the wire is (ignore gravity)View Solution
- 6View SolutionFor a spherical shell
- 7A sphere of radius $1\,cm$ has potential of $8000\,V$, then energy density near its surface will beView Solution
- 8Two dielectric slabs of constant ${K_1}$ and ${K_2}$ have been filled in between the plates of a capacitor as shown below. What will be the capacitance of the capacitorView Solution
- 9In the given circuit, ratio of charge stored in the capacitors $C, 2C, 3C, 4C, 5C$ isView Solution
- 10The plates of parallel plate capacitor are charged upto $100\;V$. A $2\,mm$ thick plate is inserted between the plates. Then to maintain the same potential difference, the distance between the plates is increased by $1.6\;mm$. The dielectric constant of the plate isView Solution