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Questions received via “Ask a Question” section

How to make a radio? Asked Amritansh prasad

 

How many time constant will be elapsed before the power delivered to the battery drops to half of its maximum value? Asked Mrityunjoy

 

Nucleus of an atom consists of neutral neutrons and positively charged protrons… then why do protons not attract neutrons and share charges with them? (+ve charges are supposed to attract neutral & -ve charges,aren’t they? and once they are in contact they share charges!) Asked sree

 

English: Schematic representation of a nucleus...
English: Schematic representation of a nucleus as an ensemble of neutrons and protons (Photo credit: Wikipedia)

 

 

Can the frictional electricity produced during landing of a plane be used for constructive purposes?

As we know that in aeroplane during landing the charged produced in it due to the friction with ground are earthed through its wheels; can this charge be stored with the help of a capacitor and used for useful purpose?

Answer:

I feel that this is a metter for research.

If you feel otherwise and know some method to tap this potential, please post.

Doubts on electric field lines and flux

English: Field of a positive point charge. Thu...
English: Field of a positive point charge. Thumbnail version (Photo credit: Wikipedia)

Q1.Is the number of electric feild lines due to a charge DEFINITE?
Q2.If it is infinite, then the electric flux due to a charge should be infinite(flux gives the num. Of elctric feild lines passing through an area)?
AND
Flux should be equal irrespective of the magnitude of charge.
Q3.If it is definite,then it will always be a natural number and cannot be a decimal,but when we take out flux for an Electron,it yeilds a decimal value.
E.flux~ magn. Of charge
————————
Permittivity of Medium
Medium-taken to be vaccum(here).

Mathar Hasan posted

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