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Standard IX

Physics

Charge

A small spher...

Question

A small sphere of radius $r_{1}$ and charge $q_{1}$ is enclosed by a spherical shell of radius $r_{2}$ and $q_{2}$ . charged sphere and shell are connnected by a wire. if $q_{1}$ is positive then

charge will flow from sphere to shell

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charge will flow from shell to sphere

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change flow will depend on magnitude of

q_{2}

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change flow will depend on magnitude of

q_{1}

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Solution

The correct option is A charge will flow from sphere to shell
We know that potential difference doesn't depends on $q_{2}$ we can thus conclude that the charge will always flow from the sphere to shell, no matter whatsoever charge is on the shell.

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Similar questions

Q. If a spherical shell of radius r1, with charge q1, encloses a sphere of radius r2 with charge q2, what would be the electric potential of the outer shell due to the sphere it encloses?

Two uniformly charged spheres with radii $r_{1}$ & $r_{2}$ and charges $Q_{1}$ & $Q_{2}$ are separated by distance d (from the periphery of the two spheres). What is the magnitude of force on $Q_{2}$ due to $Q_{1}$ ?

Q. A conducting shell of inner radius

R_{1}

and outer radius

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+ Q

. A point charge

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is placed inside the shell and

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Then for various locations of

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and

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, match the following entries of column

- I

with the entries of column

- II

Column- $I$	Column- $II$
$(i) .$ If $q_{1}$ is at center and $q_{2} = 0$ , then $\to E$ at center of shell due to charge on outer surface of shell is	$(a) . \frac{q_{1}}{4 π ε_{0} r^{2}}$
$(ii) .$ If $q_{1}$ is at center and $q_{2}$ is at distance $r$ from the center, then $\to E$ at a point distant $r_{2}$ ( $> r$ ) from the center of the shell due to outer surface charge is	$(b) .$ Zero
$(iii) .$ If $q_{1}$ is not at center and $q_{2} = 0$ , then $\to E$ at point $P$ ( $P$ is at distance $r$ from $q_{1}$ due to charge of the inner surface of shell) is	$(c) .$ Cant be determined

Q. Two statements
Statement I: A small metallic sphere is placed at the center of a large charged spherical shell and two are the connected by a wire. The charge will not flow from outer sphere to inner sphere.
Statement II: A charged conductor is placed inside the hollow conductor and two are connected by wire. The whole charge will flow on the outer surface of the outer conductor.

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A small sphere of radius r1 and charge q1 is enclosed by a spherical shell of radius r2 and q2. charged sphere and shell are connnected by a wire. if q1 is positive then

The correct option is A charge will flow from sphere to shellWe know that potential difference doesn't depends on q2 we can thus conclude that the charge will always flow from the sphere to shell, no matter whatsoever charge is on the shell.

A small sphere of radius $r_{1}$ and charge $q_{1}$ is enclosed by a spherical shell of radius $r_{2}$ and $q_{2}$ . charged sphere and shell are connnected by a wire. if $q_{1}$ is positive then

The correct option is A charge will flow from sphere to shell
We know that potential difference doesn't depends on $q_{2}$ we can thus conclude that the charge will always flow from the sphere to shell, no matter whatsoever charge is on the shell.