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What is the difference between- (1 Viewer)

sinophile

sinophile

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What is the difference between "Force between two conducting wires" and "Force between two conducting wires PER UNIT LENGTH"? How would you calculate either?
 
Pwnage101

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exactly that, the latter is per unit length, ie l is taken to be 1 (which is why on the formula sheet for HSC it is given as 'f/l = ...), wherease the former is the force on the wire, in which case a specific length must be stated in the Q.
 
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helper

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Force has the unit N, Force per Unit Length is
and unit is
 
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