Curioustab

Home » Electronics and Communication Engineering » Materials and Components

When an atom of polarizability a is placed in an electric field E, the energy stored in atom is 0.5 a E2.

True

Correct Answer: True

← Previous Question Next Question→

More Questions from Materials and Components

If ω0 is the angular frequency of rotation of electron in the absence of magnetic field, the angular frequency ω, when a magnetic field B is acting is ω ≅ ω0 + (e/2m)B.
Automobile ignition systems use the principle of
The materials having low retentivity are suitable for making
The number of valence electrons in germanium atom is
The carrier mobility in a semiconductor is 0.4 m2/Vs. Its diffusion constant at 300 K will be (in m2/s)
Lines of magnetic field attract each other.
If temperature is increased, the temperature coefficient of a metal
In an homogeneous dielectric subjected to an electric field E, the dipole moment per unit volume is ∈0(∈r - 1) E.
The temperature at which some materials become superconductors is called
A parallel plate capacitor having C = 200 x 10-12 F has loss dielectric having tan δ = 4 x 10-4. At an ac voltage of f = 106 Hz and peak value 2 V, the dielectric losses are

Discussion & Comments

No comments yet. Be the first to comment!

Join Discussion