Charges of +3 µc and –5 µc are 2 mm from each other. the –5 µc charge is replaced with a +5 µc charge. how will the electrical force between the charges compare with the original force? same force, but in the opposite direction same force, but in the same direction greater force, but in the opposite direction greater force, but in the same direction

Same force, but in the opposite direction.

Explanation:

We know that Coulomb's force between two point charges is:

F = kq₁q₂/r²

k = Coulomb's constant = 9 x 10⁹ Nm²C⁻²

q = Charge on the particles

r = Distance between them

F₁ = k(+3µC x -5µC )/ (2 x 10⁻³)² = -3.375 x 10⁴ N

F₂ = k(+3µC x +5µC )/ (2 x 10⁻³)² = 3.375 x 10⁴ N

If the sign of the charge is changed then the sign of force also changes which indicates that the direction of force becomes opposite. Previously, the charges were positive and negative so there was a force of attraction between them. Sign of one charge is reversed i.e. +5µC  from -5µC  and now, there is force of repulsion between +3µC  and +5µC . The magnitude of the force does not change.

Same force, but in the opposite direction.

Explanation:

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