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# EE8391 Important 16 Mark Questions Electromagnetic Theory

EE8391 Important 16 Mark Questions Electromagnetic Theory Regulation 2017 Anna University free download. Electromagnetic Theory Important 16 Mark Questions EE8391 pdf free download.

## Sample EE8391 Important 16 Mark Questions Electromagnetic Theory:

1. Write short notes on the following: (a) Gradient (b) Divergence (c)Curl (d) Stoke
theorem.
:
2. Express the vector B in Cartesian and cylindrical systems. Given,
Then find B at (-3, 4, 0) and (5, π/2 , -2)

3. i) Describe the classification of vector fields and a point Q is located at (-2 , 6,3), express (a) the point Q in cylindrical and spherical coordinates,(b) B in spherical coordinates. EE8391 Important 16 Mark Questions Electromagnetic Theory

4. Determine the divergence and curl of the following vector fields:

5. i)Given point P( -2,6,3) and ,express P and in cylindrical
coordinates.
ii) state and prove divergence theorem. EE8391 Important 16 Mark Questions Electromagnetic Theory

6. i) Determine the curl of the following vector fields:
ii) Given that , evaluate both sides of Stoke’s theorem for a
rectangular path bounded by the lines x= ± a, y=0,z =b.

7. i) Find the electric field at a point P(0,0,6) due to a point charge Q1 of 0.35 μC placedat
(0,5,0) and Q2
ii) obtain in the spherical coordinate system the gradient of the function
of -0.6 μC placed at (5,0,0). EE8391 Important 16 Mark Questions Electromagnetic Theory
.
8. i) State and derive divergence theorem.
ii) show that in catesian coordinates for any vector A, .

9. Explain the different coordinate systems.

10. Write short notes on gradient,divergence, curl and stokes theorem.

1. Deduce an expression for the capacitance of parallel plate capacitor having two identical media. EE8391 Important 16 Mark Questions Electromagnetic Theory

2. i) state and derive electric boundary condition for a dielectric to dielectric medium and a conductor to dielectric medium.
ii)Derive the expression for energy density in electrostatic fields.

3. (i)State and explain coulomb’s law and deduce the vector form of force equation between two point charges.
(ii)At an interface separating dielectric 1(εr1) and dielectric 2(εr2) show that the tangential component of is continuous across the boundary, whereas the normal component of is discontinuous at the boundary. EE8391 Important 16 Mark Questions Electromagnetic Theory

4. (i) A circular disc of radius ‘a’ m is charged uniformly with a charge density of ρsC/m2

ii) find the value of capacitance of a capacitor consisting of two parallel metal plates of 30cm x 30cm surface area, separately by 5mm in air. What is the total energy stored by capacitor is charged to a potential difference of 1000v? what is the energy density?
.
Find the electric potential at a point P diatant ‘h’ m from the disc surface along its axis. EE8391 Important 16 Mark Questions Electromagnetic Theory

5. i)A circular disc of radius ‘a’ m is charged uniformly with a charge density
of’σ coulombs/m2
ii)Determine the electric field density at P(-0.2,0, -2.3) due to a point charge of +5nC at
Q(0.2, 0.1, -2.5) in air. All dimensions are in meter.
. Find the potential at a point ‘h’m from the disc surface along its axis.

6. Find the potential at any point along the axis of a uniformly charged disc of σ c/m2

7. Derive the expression for energy stored and energy density in electrostastic fields. The disc has radius of ‘a’ m EE8391 Important 16 Mark Questions Electromagnetic Theory

8. Derive the boundary conditions at the interface of two dielectrics.

9. Point charges 1 mC and -2 mC are located at (3,2,-1) and (-1, -1,4) respectively.
Calculate the electric force on a 10nC charge located at (0,3,1) and the electric field intensity at the point.

10. A linear ,homogeneous , isotropic dielectric material has εr=3.6 and is covering the space between z=0 and z=1. If v= -6000z volts in the material, find EE8391 Important 16 Mark Questions Electromagnetic Theory

 Subject name Electromagnetic Theory Semester 3 Subject Code EE8391 Regulation 2017 regulation