charges

two small charges each of mass m kg and charge Q C are suspended from a position by a sphere of L meter of negligible mass. if theta is the angle between vertical postiton to the equilibrium has been reached prove: q2 = 4mgL2sin2(theata)tan(theata)k the 2's are square
35 Replies
Azura
AzuraOP7d ago
this question keeps haunting me
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@Gyro Gearloose
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Aetherfly
Aetherfly7d ago
sphere of L METER?
Opt
Opt7d ago
A sphere? I'm confuzzled You mean strings?
Azura
AzuraOP7d ago
yeah
Aetherfly
Aetherfly7d ago
why odes it haunt you
Azura
AzuraOP7d ago
the question is weird idk
Aetherfly
Aetherfly7d ago
ehh just nlm
Azura
AzuraOP7d ago
i cant find the way
Opt
Opt7d ago
Let tension be T T cos theta = mg T sin theta = electric force
Azura
AzuraOP7d ago
its from charges electric charges
Aetherfly
Aetherfly7d ago
hmm theres no G so no mututal gravitation
Opt
Opt7d ago
Eliminate T from these equations and you get your result
Azura
AzuraOP7d ago
but howw
Opt
Opt7d ago
The sin²θ appears because horizontal distance of separation is 2lsinθ Divide them na tan theta aayega
Opt
Opt7d ago
Yup Thanks Lance
Azura
AzuraOP7d ago
dhyanwd psr aise question me pata kaise chlega ki ky karna hai
Aetherfly
Aetherfly7d ago
what is your process? just basic NLM electrostatic force is just a force
Tanish
Tanish7d ago
equilibrium ki condition satisfy karni hai
SirLancelotDuLac
These type of questions mostly involve like NLM and eliminating T.
Aetherfly
Aetherfly7d ago
if you're good at vectors then you can do it
SirLancelotDuLac
To get some relation in theta and stuff.
Aetherfly
Aetherfly7d ago
I'd suggest revising some vectors and NLM
Azura
AzuraOP7d ago
mujhe to smj hi nhi aya ho kya rha hai mai to abhi is topic se introduce hui hu ooo ok
Aetherfly
Aetherfly7d ago
gravitation me nahi tha ye?
Azura
AzuraOP7d ago
okkk aise nhi kiya
Aetherfly
Aetherfly7d ago
hmm
Azura
AzuraOP7d ago
mostly g ke formula alag alag wale ya rato walr
Aetherfly
Aetherfly7d ago
oh you're a neet asp this approach of physics haunts me tbh
Azura
AzuraOP7d ago
yep
Tanish
Tanish7d ago
equilibrium dikhe to net force object pe 0 karne ka try karo
Azura
AzuraOP7d ago
oh okkk +solved @SirLancelotDuLac @Opt @Tanish
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