Electromagnetics Set 7

Electrical Engineering

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This set of Electromagnetics Multiple Choice Questions & Answers (MCQs) focuses on Electromagnetics Set 7

Q1 | Which of the following is not an example of elemental solid dielectric?
Q2 | Compute the refractive index when the dielectric constant is 256 in air.
Q3 | Curie-Weiss law is applicable to which of the following materials?
Q4 | Curie-Weiss law is used to calculate which one of the following?
Q5 | Calculate the loss tangent when the dielectric constant in AC field is given by 3 + 2j.
Q6 | When a dielectric loses its dielectric property, the phenomenon is called
Q7 | Choose the best definition of dielectric loss.
Q8 | For a conservative field which of the following equations holds good?
Q9 | Find the electric field if the surface density at the boundary of air is 10-9.
Q10 | Find the flux density at the boundary when the charge density is given by 24 units.
Q11 | The normal component of which quantity is always discontinuous at the boundary?
Q12 | Find the permittivity of the surface when a wave incident at an angle 60 is reflected by the surface at 45 in air.
Q13 | In free space, the Poisson equation becomes
Q14 | If Laplace equation satisfies, then which of the following statements will be true?
Q15 | Suppose the potential function is a step function. The equation that gets satisfied is
Q16 | The function V = exsin y + z does not satisfy Laplace equation. State True/False.
Q17 | Poisson equation can be derived from which of the following equations?
Q18 | Find the charge density from the function of flux density given by 12x – 7z.
Q19 | Find the electric field of a potential function given by 20 log x + y at the point (1,1,0).
Q20 | When a material has zero permittivity, the maximum potential that it can possess is
Q21 | Work done in charging a capacitor is
Q22 | Energy stored in 2000mF capacitor charged to a potential difference of 10V is?
Q23 | When do we get maximum energy from a set of capacitors?
Q24 | Calculate the energy in the 2F capacitor.
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