Physics Van 3-site Navigational Menu

Physics Van Navigational Menu

Q & A: magnetoresistance of saltwater?

Learn more physics!

Most recent answer: 05/04/2015
Q:
i am doing experiment on the effect of magnetic field on the electric conductivity(EC) of NaCl solution in static manner. the results shows that an increasing EC with magnetic field.can you please tell me the reason?
- diljeet kaur (age 22)
ludhiana ,punjab
A:

I can't find a reference, but it would be very surprising for aqueous NaCl to have much negative magnetoresistance. Are you using an electromagnet to apply the field? If so, there will be Joule heating in its coils. Unless you're very careful, the high-field measurements will be at higher temperature. The conductivity of saltwater goes up as the temperature rises.

Mike W.


(published on 05/04/2015)

Follow-up on this answer.