Question

A nonmechanical water meter could utilize the hall effect by applying a magnetic field across a metal pipe and measuring the hall voltage produced. What is the average fluid velocity in a 3. 50-cm-diameter pipe, if a 0. 750-t field across it creates a 75. 0-mv hall voltage?.

Answer 1

The average fluid velocity in a 3. 50-cm-diameter pipe is 2.86 m/s .

Strain, also referred to as pressure, voltage, or capability difference, is the potential distinction between points. In an electrostatic subject, it corresponds to the work according to unit charge required to transport the take a look at fee between points on it.

Voltage is the stress from the energy supply in an electrical circuit that forces charged electrons (cutting-edge) into engaging in loops, allowing work in electric circuits, and many others. B. allow the mild shine.

That is, voltage = pressure, measured in volts (V).

Voltage, additionally called electromotive force, is actually energy in step with unit charge. In different words, voltage is the capacity distinction among factors. cutting-edge is the flow fee of charge.

DRfut velocity Vd  =  Vh/(Bd)

VH is hall Volatge  =  75 mV  =  0.075 V

B is magnetic field =  0.750 T

d is thickkness  =  0.0350 m

so

Vd  = (0.075)/(0.750 * 0.0350)

Vd = 2.86 m/s

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