Curioustab

Home » Electronics and Communication Engineering » Materials and Components

A good dielectric should have

low losses
good heat conductivity
high intrinsic strength
all of the above

Correct Answer: all of the above

← Previous Question Next Question→

More Questions from Materials and Components

The temperature coefficient of resistivity of semiconductors is
Which of these has the highest dielectric strength?
When a dielectric is subjected to an electric field E, each volume element of dielectric can be considered to be carrying an electric dipole moment.
Assertion (A): Doping level in extrinsic semiconductors is very small. Reason (R): Additional of impurity in the ratio of 1 part in 108 parts increases the number of charge carriers by about 20.
Which of the following is used in automatic control of street lights?
A leaky dielectric has ∈r = ∈r' - j∈r". If a field E is applied, the current component in phase with E is proportional to ∈r".
The colour code on a carbon resistor is yellow-violet-orange. The value of resistance is
An electron in a metal suffers collision and if the probability of it being scattered over an angle dθ is 2p P(θ) sin θ dθ where P(θ) is an arbitrary function of scattering angle θ, then
The relation between thermal conductivity K (W/m/°C), heat flow density Q (watt/m2) and dT/dx (°C per metre) is
Assertion (A): Ionic solids, in general, have no electrical conductivity. Reason (R): In ionic solids, electrons are tightly bound to the nucleus.

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion