25 Replies
@Gyro Gearloose
Note for OP
+solved @user1 @user2... to close the thread when your doubt is solved. Mention the users who helped you solve the doubt. This will be added to their stats.Show the entire question at least smh
@Gamertug
wait thats a purely mathmatical proof
i was thinking since
torque is PESintheta
Sin x
once it hits x = pi
and it rotates more torque will act in opp direction
Yes
Much easier
Than intuition
and eventually it will rotate other direction
so oscilation wont be small
Small angle
Also, i actually didn't write the electric field vector correctly, since there's a z component but that's irrelevant to this problem
its valid for only small angles?
You can see that the torque depends on -sin(theta) so yeah, the SHM only exists for a small initial angle
wt how it will act in other direction
Wdym?
how will it oscilate
Initially it begins turning towards the X axis. It eventually becomes collinear with the E field, but due to its momentum, it continues turning. When it crosses the X axis, the torque flips direction, so that the torque always tries to bring the dipole moment in-line with the E field
also how do u go from that to that @Opt
oooooh
ic
From what to what?
Torque is I alpha
oooh wait ah
Alpha is d²(theta)/dt²
iac
ic
Got it?
ye , i will solve again on my own and close it
+solved @Opt
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