Two spheres of radius a and b respectively ar | vedclass

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

Question

(b) Joined by a wire means they are at the same potential. For same potential $\frac{{k{Q_1}}}{{{a_1}}} = \frac{{k{Q_2}}}{{{a_2}}}$ $==>$ $\frac{{{

Vedclass · Accepted Answer

$b/a$

Vedclass · Answer

(b) Joined by a wire means they are at the same potential. For same potential $\frac{{k{Q_1}}}{{{a_1}}} = \frac{{k{Q_2}}}{{{a_2}}}$ $==>$ $\frac{{{Q_1}}}{{{Q_2}}} = \frac{a}{b}$
Further, the electric field at the surface of the sphere having radius $R$ and charge $Q$ is $\frac{{kQ}}{{{R^2}}}.$
$\frac{{{E_1}}}{{{E_2}}} = \frac{{k{Q_1}/{a^2}}}{{k{Q_2}/{b_2}}} = \frac{{{Q_1}}}{{{Q_2}}} 	imes \frac{{{b^2}}}{{{a^2}}} = \frac{b}{a}$

Two spheres of radius $a$ and $b$ respectively are charged and joined by a wire. The ratio of electric field of the spheres is

Similar Questions

A hollow metal sphere of radius $5\,cm$ is charged such that the potential on its surface is $10\,V$. The potential at a distance of $2\,cm$ from the centre of the sphere.......$V$

In the given circuit if point $C$ is connected to the earth and a potential of $+2000\,V$ is given to the point $A$ , the potential of $B$ is.....$V$

A network of four capacitors of capacity equal to $C_1 = C,$ $C_2 = 2C,$ $C_3 = 3C$ and $C_4 = 4C$ are conducted to a battery as shown in the figure. The ratio of the charges on $C_2$ and $C_4$ is

In the figure a potential of $+ 1200\, V$ is given to point $A$ and point $B$ is earthed, what is the potential at the point $P$....$V$