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A radio capacitor of variable capacitance is made of parallel plates each of area and separated from each other by a distanced. The alternate plates are connected together. The capacitance of the combination is.
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Question 1
Two charges -q and +q are located at points (0, 0, -a) and (0, 0, a), respectively. (a) What is the electrostatic potential at the points (0, 0, z) and (x, y, 0) ?
(b) Obtain the dependence of potential on the distance r of a point from the origin when r/a >> 1
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Question 2
A solid conducting sphere of radius is enclosed by a thin metallic shell of radius A charge is given to the inner sphere is connected to the shell by a conducting wire.Question 3
A radio capacitor of variable capacitance is made of parallel plates each of area and separated from each other by a distanced. The alternate plates are connected together. The capacitance of the combination is.Question 4
In a hydrogen atom, the electron and proton are bound at a distance of about 0.53 Å: (a) Estimate the potential energy of the system in eV, taking the zero of the potential energy at infinite separation of the electron from proton.
(b) What is the minimum work required to free the electron, given that its kinetic energy in the orbit is half the magnitude of potential energy obtained in (a)?
(c) What are the answers to (a) and (b) above if the zero of potential energy is taken at 1.06 Å separation?
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| Question Text | A radio capacitor of variable capacitance is made of parallel plates each of area and separated from each other by a distanced. The alternate plates are connected together. The capacitance of the combination is. |
| Answer Type | Video solution: 1 |
| Upvotes | 159 |
