Does the force constant of a spring changes, Does the force constant of a s...

Does the force constant of a spring changes if it is cut into parts?

Relative permitivity, It is a measure of the extent up to which a materia...

It is a measure of the extent up to which a material concentrates electrostatic lines of flux. It is the amount of the stored electrical energy when a potential is applied, relat

Properties of superconductors, (1)            The  current in a super c...

(1)            The  current in a super conductor once set up continuous for a very long time without attenuations. (2)          The permeability  of a super conducto

What are quarter wave plates, What are a quarter wave plates? Get the expre...

What are a quarter wave plates? Get the expressions for its thickness in terms of refractive indices for E-ray, O-ray and wavelength?

With which p-type germanium should be doped, In order to obtain p-type germ...

In order to obtain p-type germanium it should be doped with a (A) Trivalent impurity.      (B) Tetravalent impurity. (C) Pentavalent impurity. (D) Any of the above will d

What is a power, Q. What is a power? Answer: That seat of EMF" rep...

Q. What is a power? Answer: That seat of EMF" reply is SO wrong. Not merely is the rate of charge delivery not power but a seat of EMF doesn't deliver charge. A seat of EM

Hydrogen spectrum and spectral series, When hydrogen atom is excited, it re...

When hydrogen atom is excited, it returns to its normal unexcited (or ground state) state by emitting the energy it had absorbed previous. This energy is given out by the atom in t

Forces and nature,

Can an electron be obtained from the nucleus, Can an electron be obtained (...

Can an electron be obtained (or come out) from the nucleus? Yes, electron having energy higher than the ordinary atomic electron might be come out of the nucleus because of be

Explain phase advancers, Phase advancers: Phase advancers are used to bett...

Phase advancers: Phase advancers are used to better the power factor of induction motors. The low power factor of an induction motor is because of the fact that its stator winding