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Wikipedia says that the unit of magnetic dipole moments is calculated by Joule/B that means that the torque is measured by joules
I really doubt that, it seems non sense.
I really doubt that, it seems non sense.
Torque has units of Force*distance. Usually expressed as N-m, but equivalent to Joules though I do not recommend that usage. (Usually Joule is reserved for energy, not torque!)ElmorshedyDr said:Wikipedia says that the unit of magnetic dipole moments is calculated by Joule/B that means that the torque is measured by joules
I really doubt that, it seems non sense.
How is that ?Doc Al said:But equivalent to Joules though!
1 N-m = 1 JElmorshedyDr said:How is that ?
We are talking about units, not about the definitions of torque and energy. (That's why energy is Joules while torque is in N-m, despite the fact the units are equivalent.)ElmorshedyDr said:Energy equals the product of force and the displacement
And torque is product of force and displacement between the two forces the " d " isn't the same in both cases
Right. (For example, one is a vector while the other is a scalar.)ElmorshedyDr said:The units are are the same but their definitions are different
I'm not seeing that (I'm seeing n-m), can you link and quote it please.ElmorshedyDr said:Wikipedia says that the unit of magnetic dipole moments is calculated by Joule/B that means that the torque is measured by joules
I really doubt that, it seems non sense.
After that is says Joule/teslaUltrafastPED said:I see n-m/T ... Newton-meters per Tesla, but this is not torque; it is the magnetic moment.
http://en.wikipedia.org/wiki/Magnetic_moment#Units
jtbell said:What is the equivalent of "distance" if something rotates instead of moving along a line?
ElmorshedyDr said:However, how is work done by a torque calculated ??
I know that work is calculated by f.d
I'm unable to apply that on non linear motion
Shouldn't it be radian.radius ??jtbell said:What is the equivalent of "distance" if something rotates instead of moving along a line?
ElmorshedyDr said:Torque.theta ??
Theta is radian ?
Can you tell me the proof of that law??
Because the definition of d is different in case of torque and energyDadface said:This point was raised as a short question in an A level physics paper of years ago:
Torque can be measured in Joules but it is usually considered misleading to do so. Explain why? (I don't remember the exact wording)
Torque doesn't require two forces.ElmorshedyDr said:Torque = f.d
Where d is the displacement between the two forces
Even if it is a rotating coil ??A.T. said:Torque doesn't require two forces.
There is only one force in the definition of torque. So what "two forces" are you taking about?ElmorshedyDr said:Even if it is a rotating coil ??
I only studied torque in electromagnetism, what I know about is that when two equal forces opposite in direction and have different line of actions act on a coil, it's affected by a torque.A.T. said:There is only one force in the definition of torque. So what "two forces" are you taking about?
Haven't you studied this?ElmorshedyDr said:I only studied torque in electromagnetism, what I know about is that when two equal forces opposite in direction and have different line of actions act on a coil, it's affected by a torque.
No, I didn't study Torque in a mechanics class, it was a physics class and specifically in electromagnetism.adjacent said:Haven't you studied this?
You are thinking of a couple, where two forces are used to create a torque without producing a net force. See: http://en.wikipedia.org/wiki/Couple_(mechanics)ElmorshedyDr said:I only studied torque in electromagnetism, what I know about is that when two equal forces opposite in direction and have different line of actions act on a coil, it's affected by a torque.
ThanksDoc Al said:You are thinking of a couple, where two forces are used to create a torque without producing a net force. See: http://en.wikipedia.org/wiki/Couple_(mechanics)