What formula gives the strength of an electric field, e, at a distance from a known source charge? e = startfraction f subscript e baseline over q times d endfraction. e = startfraction k times q over d endfraction. e = startfraction k times q over d superscript 2 baseline endfraction. e = startfraction f subscript e baseline over d endfraction.

Explanation:

The electric field E is derived from the electric Coulomb Force () between two charges located at a distance "d" from each other, by using positive test charge in the following expression:

tex]E=\frac{F_C}{q}[/tex]

and where the Coulomb force between a charge Q and another one q (the test charge) is giving by:

 where K represents the Coulomb constant.

Since the field is the force per unit charge using a positive test charge, the field's units will be in units of Newtons/Coulomb, and the formula for the field would be modified so as only one charge (Q - the one producing the field) will appear in the numerator:

The strength of an electric field E produced by a single charge Q at a distance d from it is therefore given by the formula: .

quantum mechanics or quantum physics is physics of very small objects (particles) and physical entities.

quantum physics has some parallels to our macro world and some pretty unique ideas which theoretically and mathematically proven to be true even though we will never be able to access them because of our size.

there are many types of particles: subatomic, elementary etc.

subatomic means they are smaller than atom, elementary means they are at the very basis of everything.

subatomic particles are for eg. protons, neutrons but not electrons.

elementary particles are categorised into 3 groups by what they do.

these 3 groups are quarks, leptons and bosons.

light for example is a particle more precisely a photon a part of leptons.

proton (subatomic particle) is made out of 2 up quarks and 1 down quark each of these has a fractional charge like . (i crazy)

most famous scientist who contributed to this physics are:

the topic itself us understand a lot and will probably be vastly used in the future (quantum computers, understanding the big bang,

we also must not forget quantum effects like:

and there is more. but probably too much for this answer to be consistent due to my average understanding of this topic.

hope this you understand quantum mechanics a little more. i'm not an expert in the topic (so don't be like wth if you are an expert) but i'm very interested in it.

anyways quantum physics is a very hard topic (harder than physics (perhaps)) therefore searching for every information there is about it and learning it is unfortunately impossible (you can only specialise into 1 - 3 things or more (perhaps

have fun and i wish you luck!

r3t40

c)as speed changes, wavelength and frequency change.

everything changes!