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shipahoy

shipahoy

Hva regner jeg feil?

Motstand = resistivitet × lengde / areal

Spenning = motstand × strøm

 

For bly:

2.20×10^(-7) (Ohm)m × 0.1 m / (0.05 m × 0.05 m) × 50 A = 0.00044 V = 440 uV

shipahoy

shipahoy

Hva regner jeg feil?

For bly:

220 (nOhm)m × 0.1 m / (0.05 m × 0.05 m) × 50 A = 440 uV



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