Home
Class 12
PHYSICS
What is dielectric strength ?...

What is dielectric strength ?

Text Solution

Verified by Experts

The mazimum electric field the dielectric can withstand before it breakdowns is called dielectric strength .
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • SAMPLE PAPER - 11

    FULL MARKS|Exercise PART- III|9 Videos

  • SAMPLE PAPER - 11

    FULL MARKS|Exercise PART-IV|10 Videos

  • SAMPLE PAPER - 11

    FULL MARKS|Exercise PART-IV|10 Videos

  • RECENT DEVELOPMENTS IN PHYSICS

    FULL MARKS|Exercise ADDITIONAL QUESTIONS (Short Answer Question)|6 Videos

  • SAMPLE PAPER - 15 (UNSOLVED)

    FULL MARKS|Exercise PART-IV|10 Videos

Similar Questions

Explore conceptually related problems

A parallel plate capacitor is to be designed with a voltage rating 1kV, using a maeterial of dielectric constant 3 and dielectric strength about 10^(7) Vm^(-1) , (Dielectric strength is the maximum electric field a material can tolerate without breakdown, i.e, without starting to conduct electricity through partial ionisation.) For safety, we should like the field never to exceed say 10% of the dielectric strength. What minimum area of the plates is required to have a capacitance of 50pF?

A parallel plate capacitor is formed by two plates, each of area 100 cm^2 , separated by a distance of 1 mm. A dielectric of dielectric constant 5.0 and dielectric strength 1.9 X 10 ^7 Vm^(-1) is filled between the plates. Find the maximum charge that can be stored on the capacitor without causing any dielectric breakdown.

An air -filled parallel-plate capacitor is to be constructed which can store 12 mu C of charge when operated at 1200V. What can be the minimum plate area of the capacitor?The dielectric strength air is 3xx10^6Vm^(-1).

The dielectric strength of air is 3.0 xx 10^6 V/m . A parallel-plate air-capacitor has area 20 cm^2 and plate separation 0.10 mm .Find the maximum rms voltage of an AC source which can be safely connected to this capacitor.

What is dielectric beakdown.

What is dielectric insulators.

What is dielectric? State examples.

In a Van de Graaff type generator, a spherical metal shell is to be a 15 xx 10^6V electrode. The dielectric strength of the gas surrounding the electrode is 5 xx 10^7 Vm^(-1) . What is the minimum radius of the spherical shell required? (You will learn from this exercise why one cannot build an electrostatic generator using a very small shell which requires a small charge to acquire a high potential.)

What is meant by dielectric ?

What is meant by dielectric break down?

Home
Profile