- #1
Steve F
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1. The question...
"Blood is a conducting fluid. When flowing through an artery of diameter 10mm which is subject to a constant magnetic field of strength 60mT, an e.m.f. of 0.3mV appears across the width of the artery. Calculate the speed of the blood"
3. The solution...
The solution given is
E = BA/t (I get that bit)
and
E = BLv (don't get this bit)
where v is speed of the blood and L is??
It continues...
v = E/BL = 0.0003/(0.060 x 0.01) = 0.5m/s
So it appears L is apparently 0.01m (10mm) which is the same as the diameter of the artery.
Any help greatly appreciated.
"Blood is a conducting fluid. When flowing through an artery of diameter 10mm which is subject to a constant magnetic field of strength 60mT, an e.m.f. of 0.3mV appears across the width of the artery. Calculate the speed of the blood"
3. The solution...
The solution given is
E = BA/t (I get that bit)
and
E = BLv (don't get this bit)
where v is speed of the blood and L is??
It continues...
v = E/BL = 0.0003/(0.060 x 0.01) = 0.5m/s
So it appears L is apparently 0.01m (10mm) which is the same as the diameter of the artery.
Any help greatly appreciated.
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