SATHEE: Electrostatics Question 9

Electrostatics Question 9

Question: Two insulated charged spheres of radii $20 c m$ and $25 c m$ respectively and having an equal charge $Q$ are connected by a copper wire, then they are separated [NCERT 1971]

Options:

A) Both the spheres will have the same charge $Q$

B) Charge on the $20 c m$ sphere will be greater than that on the $25 c m$ sphere

C) Charge on the $25 c m$ sphere will be greater than that on the $20 c m$ sphere

D) Charge on each of the sphere will be $2 Q$

Show Answer

Answer:

Correct Answer: C

Solution:

After the connection of wire $V_{1} = V_{2}$

$\frac{Q_{1}}{25} = \frac{Q_{2}}{20}$

therefore $\frac{Q_{1}}{Q_{2}} = \frac{25}{20}$

therefore $Q_{1} > Q_{2}$

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Electrostatics Question 9

Question: Two insulated charged spheres of radii 20cm and 25cm respectively and having an equal charge Q are connected by a copper wire, then they are separated [NCERT 1971]

Options:

Answer:

Solution:

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Question: Two insulated charged spheres of radii $20 c m$ and $25 c m$ respectively and having an equal charge $Q$ are connected by a copper wire, then they are separated [NCERT 1971]