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Class 12 Physics Practice Test: Electrostatic Potential due to a Point Charge
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Related Test: Class 12 Physics Practice Test: Electrostatic Potential and Capacitance

Class 12 Physics Practice Test: Electrostatic Potential due to a Point Charge
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10 Questions

1. Three positive charges are kept at the vertices of an equilateral triangle. We can make the potential energy of the system zero by adjusting the amount of charges. This statement is ______
2. Calculate electric potential due to a point charge of 10C at a distance of 8cm away from the charge.
3. A small charge q is rotated in a complete circular path of radius r surrounding another charge Q. The work done in this process is _________
4. Two point charges 10C and -10C are placed at a certain distance. What is the electric potential of their midpoint?
5. Electric potential due to a point charge q at a distance r from the point is _______ (in the air).
6. Three charges –q, Q and –q are placed in a straight line maintaining equal distance from each other. What should be the ratio \(\frac {q}{Q}\) so that the net electric potential of the system is zero?
7. What is the electric potential of the system?
8. Two point charges 10C and -10C are placed at a certain distance. What is the electric potential of their midpoint?
9. What is the amount of work done to bring a charge of 4*10-3C charge from infinity to a point whose electric potential is 2*102V?
10. A small charge q is rotated in a complete circular path of radius r surrounding another charge Q. The work done in this process is _________

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