anonymous
  • anonymous
If 2 quantities have same dimension, do they have to represent the same physical quantity?
MIT 6.002 Circuits and Electronics, Spring 2007
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katieb
  • katieb
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anonymous
  • anonymous
No. Like Work and Energy have same dimensiional formula, but they are definitely different physical quantities.
anonymous
  • anonymous
Also for the Work & Torque there is same position, Since W = F.d and also torque = F.(perpendicular distance). Hey...It isn't necessary that if two quantities have same dimensions they represent same physical quantity... Dimensions just say that you aren't wrong while deriving a formula and but thy don't tell if you are perfectly right...
anonymous
  • anonymous
Dimension are values which represent measurement of a quantity , well it does not mean that that the two quantities measured are the of the same type.....like measuring the length of a field ,suppose :15m and length of a cardboard ,suppose= 1m. Therefore...not necessary they represent two quantities..

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anonymous
  • anonymous
@Ackbar: not sure why work and energy are not the same physical quantities... work is just a transfer of energy
anonymous
  • anonymous
idk.
anonymous
  • anonymous
hi friends
anonymous
  • anonymous
i am a student at erciyes university in turkey

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