Materials in Electrical Systems

(e) List the Gaseous and Liquid insulating materials.

Discuss propertie of following: -

(d) Bimetallic

Discuss propertie of following: -

(c) Special semiconductors

Discuss propertie of following: -

(b) Inductors

Discuss propertie of following: -

(a) Resistors

j) Compare soft and hard magnetic materials on the basis of their applications and losses. 

(i) Give properties and applications different materials used in thermo couple, fusing and soldering. 

(h) Explain concept of eddy current and hysteresis loss.

(g) Describe B-H Curve of ferro-magnetic and ferri magnetic materials.

(f) Give properties and applications of high resistance materials.

(a) Describe applications of conductors, semiconductors and insulators.

(d) Classify the insulating materials with their applications.

(c) Discuss electrical, mechanical and thermal properties of Low resistance materials and their applications.

(b) Describe the factors affecting the resistivity.

(a) Give brief description of Energy band diagram of semiconductors,insulators and conductors.

(b) List properties of diamagnetic, Paramagnetic and ferro magnetic materials.

(a) Discuss properties of soft and hard magnetic materials along with special purpose magnetic materials.

(b) Explain rentivity and coercivity on the basis B-H curve of magnetic materials. 

(a) Explain Curie temperature and magnetstriction effect.

(b) Describe mechanical, chemical, physical and electrical properties of insulating materials. 

(ii) Natural insulating materials.

(a) Give properties and applications of:-

(i) Synthetic insulating materials

(b) Discuss applications of ceramics and synthetic insulating materials.

(a) Explain thermoplastic and insulating materials.

(b) Discuss super conductivity and properties and applications of superconducting materials.