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A cube of side b has a charge q at each ...

A cube of side b has a charge q at each of its vertices. Determine the potential and electric field due to this charge array at the center of the cube.

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Potential = `4q//(sqrt(3)pi epsilon_(0) b)`, field is zero, as expected by symmetry.
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NCERT TAMIL-ELECTROSTATIC POTENTIAL AND CAPACITANCE -EXERCISES
  1. A 12 pF capacitor is connected to a 50 V battery. How much electrost...

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  2. A 600pF capacitor is charged a 200V supply. It is then disconnnected f...

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  3. A cube of side b has a charge q at each of its vertices. Determine the...

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  4. Two tiny spheres carrying charges 1.5 muC and 2.5 muC are located 30 c...

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  5. A spherical conducting shell of inner radius r(1) and outer radius r(2...

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  6. Show that the normal component of electrostatic field has a discontinu...

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  7. A long charged cylinder of linear charge density lambda is surrounde...

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  8. In a hydrogen atom, the electron and proton are bound at a distance of...

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  9. If one of the two electrons of a hydrogen molecule is removed, we get ...

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  10. Two charged conducting spheres of radii a and b are connected to eac...

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  11. Two charges -q and +q are located at points (0, 0, –a) and (0, 0, a), ...

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  12. Figure shows a charge array known as an electric quadrupole. For a poi...

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  13. An electrical technician requires a capacitance of 2 muF in a circuit ...

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  14. What is the area of the plates of a 2 F parallel plate capacitor, give...

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  15. Obtain the equivalent capacitance of the network in figure below. For ...

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  16. The plates of a paralllel plate capacitor have an area of 90 cm^(2) e...

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  17. A 4 muF capacitor is charged by a 200 V supply. It is then disconnect...

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  18. Show that the force on each plate of a parallel plate capacitor has a ...

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  19. A spherical capacitor consists of two concentric spherical conductors,...

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  20. A spherical capacitor has an inner sphere of radius 12 cm and an oute...

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