SATHEE: Electrostatics Question 30

Electrostatics Question 30

Question: The radii of two metallic spheres $P$ and $Q$ are $r_{1}$ and $r_{2}$ respectively. They are given the same charge. If $r_{1} > r_{2}$ . then on connecting them with a thin wire, the charge will flow [MP PMT 1985]

Options:

A) From P to Q

B) From Q to P

C) Neither the charge will flow from P to Q nor from Q to P

D) The information is incomplete

Show Answer

Answer:

Correct Answer: D

Solution:

Since charge flows from high potential to lower potential.

If positive charge is given, then $V_{1} < V_{2}$ as $r_{1} > r_{2}$

So positive charge flows from Q ® P If negative charge is given, then $V_{1} > V_{2}$

So negative charge flows form $P \to Q$ .

Since it is not given that whether the charge given is positive or negative, hence the information is incomplete.

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Electrostatics Question 30

Question: The radii of two metallic spheres P and Q are r1 andr2 respectively. They are given the same charge. If r1>r2 . then on connecting them with a thin wire, the charge will flow [MP PMT 1985]

Options:

Answer:

Solution:

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Question: The radii of two metallic spheres $P$ and $Q$ are $r_{1}$ and $r_{2}$ respectively. They are given the same charge. If $r_{1} > r_{2}$ . then on connecting them with a thin wire, the charge will flow [MP PMT 1985]