Recent questions tagged dielectric

1 answer 10 views

Define : (i) Dielectric strength (ii) Breakdown voltage

asked Sep 4, 2018 by Shimroz123
1 answer 7 views

What is dielectric strength of an insulating material? What is its unit?

asked Sep 4, 2018 by Shimroz123
1 answer 14 views

The power factor of dielectric :  (A) is a function of temperature of the dielectric only (B) depends only on voltage stress to which the dielectric is stressed (C) always constant (D) both (A) and (B)

asked Apr 30, 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 26 views

The frequencies and voltage used in Dielectric heating are (A) 10 – 30 MHz, upto 25 kV (B) 50 – 60 Hz, upto 25 kV (C) 10 – 30 MHz, upto 100 V (D) 50 – 60 Hz, 110 V – 230 V

asked Apr 28, 2018 in Utilization of electrical energy by Shimroz123
1 answer 16 views

Dielectric loss in a capacitor is best measured by (A) Wien Bridge (B) Schering Bridge (C) Anderson Bridge (D) Heaviside-Campbell Equal Ratio Bridge

asked Apr 25, 2018 in Electrical Measurements and Instrumentation by Shimroz123
1 answer 26 views

The dielectric strength of transformer oil is expected to be?

asked Mar 19, 2018 in Transformer by Shimroz123
1 answer 29 views

What is the difference between an insulator and a dielectric?

asked Mar 11, 2018 in Utilization of electrical energy by Quiz
0 answers 26 views

What is meant by dielectric heating?

asked Mar 11, 2018 in Utilization of electrical energy by Quiz
0 answers 16 views

What is dielectric breakdown strength?

asked Mar 10, 2018 in High voltage engineering by Quiz
0 answers 20 views

What is dielectric withstand voltage?

asked Mar 10, 2018 in High voltage engineering by Quiz
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