The drawing shows a type of flow meter that can be used to measure the speed of

Question

The drawing shows a type of flow meter that can be used to measure the speed of blood in situations when a blood vessel is sufficiently exposed (e.g., during surgery). Blood is conductive enough that it can be treated as a moving conductor. When it flows perpendicularly with respect to a magnetic field, as in the drawing, electrodes can be used to measure the small voltage that develops across the vessel. Suppose the speed of the blood is 0.43 m/s and the diameter of the vessel is 4.2 mm. In a 0.46-T magnetic field what is the magnitude of the voltage that is measured with the electrodes in the drawing?

Explanation / Answer

here we will write what's given to us

v= 0.43 m/s

B=0.46 T

l or D = 4.2 MM OR 0.0042 metres

so we will use the formula

E( E.M.F ) =B * V * L

= (0.46 T ) * (0.43 ) * (0.0042 )

= 8.3076 * 10 ^ -4 OR 0.00083076 VOLTS

Related Questions

Navigate

• Browse (All)
• Browse T
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.