Hall Voltage Effect: Calculating Potential Difference

  • Thread starter Thread starter zigga15
  • Start date Start date
  • Tags Tags
    Voltage
zigga15
Messages
9
Reaction score
0
Hey I am having trouble with the following question.

Because blood contains charged ions moving blood develops a Hall voltage across the diameter of an artery. The blood in a large artery with a diameter of 0.85 cm has a flow speed of 0.6 m/s. If a section of this artery is in a magnetic field of 0.4T, what is the potential diference across the diameter of the artery?

I have an idea of what is going on in the question, but it seems i havn't been given enough information to solve it. I know that hall voltage is given by:

V = (IB)/ned and i know that F = qvB if i assumed the field was perpendicular to the artery I could use that for something - maybe. But really I am stumped, any help, or even a formula i have over looked would be great thanks.

~Daniel
 
Last edited:
Physics news on Phys.org
zigga15 said:
Hey I am having trouble with the following question.

Because blood contains charged ions moving blood develops a Hall voltage across the diameter of an artery. The blood in a large artery with a diameter of 0.85 cm has a flow speed of 0.6 m/s. If a section of this artery is in a magnetic field of 0.4T, what is the potential diference across the diameter of the artery?

I have an idea of what is going on in the question, but it seems i havn't been given enough information to solve it. I know that hall voltage is given by:

V = (IB)/ned and i know that F = qvB if i assumed the field was perpendicular to the artery I could use that for something - maybe. But really I am stumped, any help, or even a formula i have over looked would be great thanks.

~Daniel
You have to know how many charge carriers flow past a given point per unit time. You don't have enough information to find that.

AM
 

Thread 'Direction of the magnetic field of an oscillating charge'

Hello everyone, I’m considering a point charge q that oscillates harmonically about the origin along the z-axis, e.g. $$z_{q}(t)= A\sin(wt)$$ In a strongly simplified / quasi-instantaneous approximation I ignore retardation and take the electric field at the position ##r=(x,y,z)## simply to be the “Coulomb field at the charge’s instantaneous position”: $$E(r,t)=\frac{q}{4\pi\varepsilon_{0}}\frac{r-r_{q}(t)}{||r-r_{q}(t)||^{3}}$$ with $$r_{q}(t)=(0,0,z_{q}(t))$$ (I’m aware this isn’t...
View full post »

Thread 'Initial conditions for orbits around a wormhole'

Hi, I had an exam and I completely messed up a problem. Especially one part which was necessary for the rest of the problem. Basically, I have a wormhole metric: $$(ds)^2 = -(dt)^2 + (dr)^2 + (r^2 + b^2)( (d\theta)^2 + sin^2 \theta (d\phi)^2 )$$ Where ##b=1## with an orbit only in the equatorial plane. We also know from the question that the orbit must satisfy this relationship: $$\varepsilon = \frac{1}{2} (\frac{dr}{d\tau})^2 + V_{eff}(r)$$ Ultimately, I was tasked to find the initial...
View full post »

Similar threads

Solving the Speed of Blood Flow in a Magnetic Field
Replies
6
Views
2K
I Quantum Hall Effect and Hall Voltage
Replies
0
Views
1K
Calculating the Hall Coefficient for a sample of germanium
Replies
2
Views
3K
Calculating blood pressure increase with Poiseuille's equation
Replies
1
Views
6K
I Hall effect -- is it always applicable?
Replies
7
Views
2K
Hall effect over a conducting ring
Replies
4
Views
2K
I Hall effect in P-type semiconductors: electron-centric heuristic?
Replies
0
Views
2K
Hall Voltage Conundrum. Was Edwin Wrong?
Replies
1
Views
1K
Solving Hall Voltage Problem Homework Statement
Replies
3
Views
3K
IV curve for voltage across shunt for probe current (Helimak experiment)
Replies
1
Views
1K

Hot Threads

Recent Insights

Back
Top