Related Questions

Calculate the relative permittivity of the second dielectric if the relative permittivity of the first is 4. The electric field strength of the first dielectric is 8V/m and that of the second is 2V/m.
The total permittivity of a dielectric transformer oil (relative permittivity is 2.2) will be (in order 10-11)
Two dielectric materials A and B exhibit both ionic and orientational polarizabilities. The variation of their susceptibilities $$\chi \left( { = {\varepsilon _r} - 1} \right)$$   with temperature T is shown in the figure, where $${\varepsilon _r}$$ is the relative dielectric constant. It can be inferred from the figure that
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A certain cable has an insulation of relative permittivity 4. If the insulation is replaced by one of relative permittivity 2, the capacitance of the cable will become
Consider the following statements.
1. Glass wool has tensile strength greater than steel.
2. Glass wool is fire proof.
3. Glass wool has high electrical conductivity and absorbs moisture.
4. Glass wool is used to prepare libre glass.
Which of the statements given above are correct?
If a dielectric resonator has a dielectric constant of 49, then the reflection coefficient of the dielectric resonator is:
What happens to relative permittivity when actual permittivity decreases?
What is the relative permittivity when the actual permittivity is 4F/m?
What happens to absolute permittivity when relative permittivity increases?
Calculate the actual permittivity of a medium whose relative permittivity is 5.