A spherical condenser has inner and outer sph | vedclass

Name: PDF Generator App | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(c) Capacity when outer sphere is earthed
${C_1} = 4\pi {\varepsilon _0}\frac{{ab}}{{b - a}}$
Capacity when inner sphere is earthed
${C_2} = 4\pi {

Vedclass · Accepted Answer

$4\pi {\varepsilon _0}b$

Vedclass · Answer

(c) Capacity when outer sphere is earthed
${C_1} = 4\pi {\varepsilon _0}\frac{{ab}}{{b - a}}$
Capacity when inner sphere is earthed
${C_2} = 4\pi {\varepsilon _0}b + \frac{{4\pi {\varepsilon _0}ab}}{{b - a}} = 4\pi {\varepsilon _0}\left( {\frac{{{b^2}}}{{b - a}}} \right)$
Difference in capacity = ​$C_2 -C_1 = 4\pi {\varepsilon _0}b$

A spherical condenser has inner and outer spheres of radii $a$ and $b$ respectively. The space between the two is filled with air. The difference between the capacities of two condensers formed when outer sphere is earthed and when inner sphere is earthed will be

Similar Questions

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.....$sec$

A condenser of $2\,\mu F$ capacitance is charged steadily from $0$ to $5$ $Coulomb$. Which of the following graphs correctly represents the variation of potential difference across its plates with respect to the charge on the condenser

A solid conducting sphere of radius $R_1$ is surrounded by another concentric hollow conducting sphere of radius $R_2$. The capacitance of this assembly is proportional to

What physical quantities may $X$ and $Y$ represent ? ($Y$ represents the first mentioned quantity)

A cylindrical capacitor has two co-axial cylinders of length $20 \,cm$ and radii $2 r$ and $r$. Inner cylinder is given a charge $10 \,\mu C$ and outer cylinder a charge of $-10 \,\mu C$. The potential difference between the two cylinders will be