EC6403 EMF 2marks-16marks
Anna University Regulation 2013 Electronic Communications Engineering (ECE) EC6403 EMF 2marks & 16marks for all 5 units are provided below. Download link for ECE 4th SEM EC6403 ELECTROMAGNETIC FIELDS Short answers, Question Bank are listed down for students to make perfect utilization and score maximum marks with our study materials.
EC6403 ELECTROMAGNETIC FIELDS QUESTION BANK
UNIT I – STATIC ELECTRIC FIELD
2-marks
A field is a system in which a particular physical function has a value at each and every point in that region. The distribution of a scalar quantity with a defined position in a space is called scalar field.
Ex: Temperature of atmosphere.
2. Define Vector field?
If a quantity which is specified in a region to define a field is a vector then the corresponding field is called vector field.
3. Define scaling of a vector?
This is nothing but, multiplication of a scalar with a vector. Such a multiplication changes the magnitude of a vector but not the direction.
4. What are co-planar vector?
The vectors which lie in the same plane are called co-planar vectors.
5. Define base vectors?
The base vectors are the unit vectors which are strictly oriented along the directions of the coordinate axes of the given coordinate system.
6. What is a position vector?
Consider a point p(x, y, z) are Cartesian coordinate system. Then the position vector of point p is represented by the distance of point p from the origin directed from origin to point. This is also called as radius vector.
EC6403 EMF 2marks-16marks
Divergence is defined as the net outward flow of the flux per unit volume over a closed incremental surface.
8. State Divergence Theorem.
The integral of the normal component of any vector field over a closed surface is equal to the integral of the divergence of this vector field throughout the volume enclosed that closed surface.
9. What is physical significance of curl of a vector field?
Curl gives rate of rotation. Curl F gives work done per unit area.
10. What is physical significance of divergence?
Divergence of current density gives net outflow of current per unit volume. Divergence of flux density gives net outflow per unit volume. In general, divergence of any field density gives net outflow of that field per unit volume.
EC6403 EMF Unit 1 2marks & 16marks – Download Here
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EC6403 EMF Unit 5 2marks & 16marks – Download Here
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