A large solid sphere with uniformly distributed positive charge has a smooth narrow…
Physics · Class 12 · CBSE — Electrostatic Potential & Capacitance
A large solid sphere with uniformly distributed positive charge has a smooth narrow tunnel through its centre. A small particle with a negative charge, initially at rest far from the sphere, approaches it along the line of the tunnel, reaches its surface with a speed v, and passes through the tunnel. Its speed at the centre of the sphere will be
- \(\sqrt{1.5} v\)
- 0
- v
- \(\sqrt{2} v\)
Answer
(D) 2 v
Sign up free on Edukali to view the step-by-step worked solution and practice thousands of similar questions.
Related practice questions
- There are four-point charges +q,-q,+q and -q placed at the corners A, B, C, and D respectively of a square of…
- If a unit positive charge is taken from one point to another over an equipotential surface, then:
- Capacitors are used in electrical circuits where appliances need more:
- In which of the states shown in the figure, is potential energy of an electric dipole maximum?
- Four electric charges + q, + q, -q and - q are placed at the corners of a square of side 2 L (see figure)…
- Find the charge on 2 F.
- Two condensers, one of capacity C and the other of capacity C 2 are connected to a V volt battery, as shown…
- 0.2 F capacitor is charged to 600 V by a battery, on removing the battery, it is connected with another…
More Electrostatic Potential & Capacitance questions · Browse all practice questions