## EE6302 EMT 2marks

Anna University Regulation 2013 EEE EE6302 EMT 2marks & 16marks for all 5 units are provided below.EE6302 EMT Short answers, Question Bank for ElectroMagnetic Theory are listed down for students to make perfect utilization and score maximum marks with our study materials.

UNIT 2 – ELECTROSTATICS – II
1. What is electrostatic force?
The force between any two particles due to existing charges is known as electrostatic force, repulsive for like and attractive for unlike.
2. What are dielectrics?
Dielectrics are materials that may not conduct electricity through it but on applying electric field induced charges are produced on its faces .The valence electron in atoms of a dielectric are tightly bound to their nucleus.
3. What is a capacitor?
A capacitor is an electrical device composed of two conductors which are separated through a dielectric medium and which can store equal and opposite charges ,independent of whether other conductors in the system are charged or not.
4. Define dielectric strength.
The dielectric strength of a dielectric is defined as the maximum value of electric field that can b applied to the dielectric without its electric breakdown.
5. What meaning would you give to the capacitance of a single conductor?
A single conductor also possess capacitance. It is a capacitor whose one plate is at infinity.
6.Why water has much greater dielectric constant than mica.?
Water has a much greater dielectric constant than mica because water has a permanent dipole moment, while mica does not have.
7.What is a point charge?
Point charge is one whose maximum dimension is very small in comparison with any other length.
8.Define linear charge density(ρ1).
It is defined as the charge (Q) per unit length (L).
ρ1=Q/L

9. Define potential difference.
Potential difference is defined as the work done in moving a unit positive charge from one point to another point in an electric field.
10. Define potential.
Potential at any point is defined as the work done in moving a unit positive charge from infinity to that point in an electric field.
V=Q / 4Πεr2
Where, V=Electric Potential
Q=Charge
ε= Relative permittivity
r=Distance between charge
11. Give the relation between electric field intensity (E) and electric flux density (D).
D=εE C/m2
12. Write the expression for energy density in electrostatic field.
W=1 / 2 εE2
Where, V=Electric Potential
W=Energy Density
If you require any other notes/study materials, you can comment in the below section.