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Two parallel proton beams are moving in same directions.Will they attract or repel each other ??

27 Answers

1
voldy ·

whenever we say of current we always talk , of conventional current only no ? thus it's the proton beam only no ? thus , They'd attract no?

1
rahul wadhwani ·

they will attract surely think as twoo wire ll & 'i' in same direction attracted but some more data must be available as if an exception is there is Fe>Fb but generally Fb>Fe but not always

11
Anirudh Narayanan ·

Ya ok. Silly doubt. Thanx [1]

9
Celestine preetham ·

yes a wire is neutral isnt it

11
Subash ·

0 charge because a wire is neutral in charge as it contains both electrons and protons

1
Aditya ·

They will repel as only the repulsive forces are dominant in this case.
Whereas, 2 wires carrying current in the same direction attract as the magnetic forces become dominant here.

11
Anirudh Narayanan ·

0 charge? [7]

9
Celestine preetham ·

aragorn in current carrying wires theres no electrostatic attraction due to 0 charge

11
Anirudh Narayanan ·

Then why is this not the case in current carrying wires?

1
SatyaPriya Ojha ·

If speed is less than light , Magnetic force will be less than Electric force ..so repulsion..If speed is equal to light ...no force.

11
Anirudh Narayanan ·

So do they attract or repel? [7]

1
SatyaPriya Ojha ·

Hehe nice discussions :D , apparently all of u have got it ..
All i meant was they will attract or repel depending on the speed at which they travel..

Magnetic force will be attractive as two parallel wires carrying current in same direction attract each other.
Electrostatic force will be repulsive as like charges repel each other.

If the forces are equal we should have

(1/4πεo)e2/d2 = μoe2v2/2πd2
v = 1/√(ε0μo) = c

If they move with speed of light , then no attraction or repulsion.

Remember magnetic field produced by a moving charge (e , v) is

(μ0/4π)(ev/r2)

1
Philip Calvert ·

but i have a feeling that they would not do anything

it seems wierd when you think of proton beams attracting or repelling each other
see they're two beams of light
hmmmm maybe .
but anyway since my first answer is the one which i can reason for; i stick to it

and yes guys that is why it is in Satya's Corner after all

1
voldy ·

same as electron beams no ?? both in same direction , attract . different directions repel.

right???

1
Philip Calvert ·

attract

11
Subash ·

i think they will attract

same reason as philips

11
Anirudh Narayanan ·

Yes. Instead of a current of electrons, consider a current of protons. Won't they have the same effect?

3
msp ·

philip is correct abt the definition of the current.

11
Anirudh Narayanan ·

What do you think about philip's theory, people? I think he's spot on. [4]

11
Anirudh Narayanan ·

Beautiful analogy, dude!

1
Philip Calvert ·

bcoz there is a current flowing in both cases

i gave it a guess.plz dont take it too seriously

btw what do you think

11
Anirudh Narayanan ·

Why do attracting wires hv to do with this question?

1
Philip Calvert ·

yes that s why i think they shud attract each other

its just a guess as you know i waiting for the real answer

11
Anirudh Narayanan ·

Doesn't that defenition have something to with two current carrying wires attracting each other?

11
Anirudh Narayanan ·

Can anyone explain why they should attract? Is this bcos, if the initial velocity is high enough, the electrostatic force becomes a nuclear force once the distance between them becomes <106m?

1
greatvishal swami ·

first repel then attract

11
Anirudh Narayanan ·

I didn't get the quesiton, Satya. Can u post some sort of a diagram? I would've immediately said "repel" . But I'm thinking twice bcos this question is under Satya's Corner[4]

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