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# EE6302 Electromagnetic Theory Important questions

## Sample EE6302 Electromagnetic Theory Important questions:

1. State stokes theorem.

The line integral of a vector around a closed path is equal to the surface integral
of the normal component of its curl over any surface bounded by the path
∫H.dl = ∫ ∫ (ΔxH)ds
Where, H=Magnetic field intensity

(ee6302 electromagnetic theory important questions)

2. State the condition for the vector F to be solenoidal.

Δ.F =0
Where, F=A i + B i + C i

3. State the condition for the vector F to be irrotational.

ΔxF =0
Where, F=A i + B i + C i

4. Give the relationship between potential gradiant and electric field.

E= – ΔV
Where, E=Electric Field Intensity
V=Electric Potential

5. What is the physical significance of div D ?

The divergence of a vector flux density is electric flux per unit volume leaving a small volume. This is equal to the volume charge density. (ee6302 electromagnetic theory important questions)

6.What are the sources of electric field and magnetic field?

Stationary charges produce electric field that are constant in time, hence the term
electrostatics. Moving charges produce magnetic fields hence the term magneto statics. (ee6302 electromagnetic theory important questions)

7. State Divergence Theorem.

The integral of the divergence of a vector over a volume v is equal to the surface
integral of the normal component of the vector over the surface bounded by the volume.
∫∫Δ.F ds = ∫∫∫ F dv
Where, F=A i + B i + C i (ee6302 electromagnetic theory important questions)

8. Define divergence.

The divergence of a vector F at any point is defined as the limit of its surface integral per unit volume as the volume enclosed by the surface around the point shrinks to zero. (ee6302 electromagnetic theory important questions)

9. State coulombs law.

Coulombs law states that the force (F) between any two point charges (Q1 and Q2) is directly proportional to the product of their magnitudes and inversely proportional to the square of the distance ® between them. It is directed along the line joining the two charges.

 Subject Name Electromagnetic Theory Subject code EE6302 Regulation 2013