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Electromagnetic Engineering: Electric Fields in Material Space
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Electromagnetic Engineering: Electric Fields in Material Space
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25 Questions

1. Calculate the polarisation vector in air when the susceptibility is 5 and electric field is 12 units.
2. Find the flux density of a sheet of charge density 25 units in air.
3. When a material has zero permittivity, the maximum potential that it can possess is
4. A uniform surface charge of σ = 2 μC/m2, is situated at z = 2 plane. What is the value of flux density at P(1,1,1)m?
5. Calculate the charge density when a potential function x2 + y2 + z2 is in air(in 10-9 order)
6. The electric flux density is the
7. The best definition of polarisation is
8. The given equation satisfies the Laplace equation. = x2 + y2 
9. The lines of force are said to be
10. The total polarisation of a material is the
11. Polarizability is defined as the
12. Why does capacitor block dc signal at steady state?
13. Calculate the energy stored per unit volume in a dielectric medium due to polarisation when P = 9 units and E = 8 units.
14. In the given types of polarisation, which type exists in the semiconductor?
15. Electric flux density in electric field is referred to as
16. Identify which type of polarisation depends on temperature.
17. What is the value of capacitance of a capacitor which has a voltage of 4V and has 16C of charge?
18. In free space, the Poisson equation becomes
19. Poisson equation can be derived from which of the following equations?
20. For which medium capacitance is high?
21. Suppose the potential function is a step function. The equation that gets satisfied is
22. Which of the following is a passive device?
23. Find the charge density from the function of flux density given by 12x '
24. Capacitor blocks__________ after long time.
25. Capacitor stores which type of energy?

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