Recent questions tagged materials

1 answer 16 views

Classify electrical materials.

asked Sep 4, 2018 by Shimroz123
1 answer 6 views

Explain the mechanical properties of insulating materials.

asked Sep 4, 2018 by Shimroz123
1 answer 32 views

Classify magnetic materials and explain in brief.

asked Sep 4, 2018 by Shimroz123
1 answer 5 views

State any four properties of conducting materials.

asked Sep 4, 2018 by Shimroz123
1 answer 15 views

The electric breakdown strength of insulating materials depends on  (A) Nature of applied voltage (B) lmperfection of dielectric material (C) Pressure, temperature and humidity (D) All or these

asked May 8, 2018 in Electric Power Transmission by Shimroz123
1 answer 32 views

_______ is used for heating non -conducting materials.  (1) Eddy current heating (2) Arc heating (3) Induction heating (4) Dielectric heating

asked Apr 30, 2018 in Electrical Engineering by Shimroz123
1 answer 16 views

Magnetostrictive materials can convert ________ A) Magnetic energy into kinetic energy B) Kinetic energy into magnetic energy C) Both A and B D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 25 views

The ability of materials to become polarized under an applied electric field is called _______ A) Ferroelectricity B) Paraelectricity C) Polectricity D) None of these

asked Apr 29, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

The bridge most suited for accurate measurement of relative permittivity of dielectric materials is (A) Carey Foster Bridge (B) Anderson’s bridge (C) Heaviside Bridge modified by Campbell. (D) Schering Bridge.

asked Apr 28, 2018 in Control System by Shimroz123
1 answer 12 views

Insulating materials have the function of?

asked Mar 25, 2018 in Basic concepts by Shimroz123
1 answer 280 views

Those materials are well suited for making permanent magnets which have _____ retentivity and _______ coercivity.

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
1 answer 15 views

Those magnetic materials are best suited for making armature and transformer cores which have____permeability and_______hystersis loss.

asked Mar 25, 2018 in Electrical Engineering by Shimroz123
0 answers 12 views

What kinds of materials can not electricity pass through?

asked Mar 14, 2018 in Electrical Engineering by Quiz
0 answers 15 views

What materials are diamagnetic?

asked Mar 11, 2018 in Electrical engineering materials by Quiz
0 answers 16 views

What is non ferromagnetic materials?

asked Mar 11, 2018 in Electrical engineering materials by Quiz
0 answers 40 views

What are some ferromagnetic materials?

asked Mar 11, 2018 in Electrical engineering materials by Quiz
0 answers 52 views

What is the meaning of electrical materials?

asked Mar 11, 2018 in Electrical engineering materials by Quiz
0 answers 30 views

Explain the electrical losses of magnetic materials used for the cores of inductors and transformer.

asked Mar 10, 2018 in Power Electronics by Quiz
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