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Charges on Conductors

A thin metall...

Question

A thin metallic spherical shell contains a charge Q on its surface. A point charge $q_{1}$ is placed at the center of the shell, and another charge $q_{2}$ is placed outside the shell. All the three charges are positive. Then the force on charge $q_{1}$ is :

toward right

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toward left

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zero

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none of these

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Solution

The correct option is A zero
Electric field remains zero inside a metallic shell due to outside charges.
Since electric field is zero due to other charges, hence force will also be zero.

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Similar questions

Q_{1}

Q_{2}

R_{1}

R_{2}

+ Q

q_{1}

q_{2}

q_{1}

q_{2}

- I

- 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

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