**EC8451 EF Question Papers**

Anna University Regulation 2017 ECE **EC8451 **EF** Question Papers for previous years** are provided below. **Previous Year Question Papers for **ECE **4th SEM EC8451 Electromagnetic Fields, Engineering** are listed down for students to make perfect utilization and score maximum marks with our study materials.

### Anna University Regulation 2017 (ECE) 4th SEM EC8451 EF – Electromagnetic Fields question paper

1. List the source quantities in the electromagnetic model.

2. Describe line, surface and volume charge density.

3. State divergence theorem.

4. Define Stokes theorem.

5. Name the universal constants in the electromagnetic model.

6. What are surface and volume integrals?

7. Give the relationship between potential and electric field intensity.

8. Identify the unit vector and its magnitude corresponding to the given vector A=5 âx + ây + 3 âz.

9. Estimate the distance between the given vectors A (1, 2,3) and B (2,1,2).

10. Outline the relationship between magnetic flux density and field density.

11. Calculate the values of universal constants of free space.

12. Analyze a differential volume element in spherical coordinates (r,θ,φ) resulting from differential charges in the orthogonal coordinate systems.

13. Specify the unit vector extending from the origin towards the point G (2,- 2,-1).

14. Compare orthogonal and non-orthogonal coordinate systems.

15. Point out the role of vector algebra in electromagnetics.

16. Convert the point P (5, 1, 3) from Cartesian to spherical coordinates.

17. Show the transformation between spherical and Cartesian coordinates.

18. Justify that electric field is conservative.

19. Obtain the gradient of V=10 r sin2θ cosφ.

20. Assess the measurement of strength of flow and vortex source

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EC8451 Question Papers with answers, EF previous year question bank – ECE 4th Semester