A very long cylindrical iron rod of radius R is given a uniform longitudinal magnetization M, and then bent into a circle with a narrow gap of length w (this is essentially a toroid with a circular cross section from which a very small portion of.

Magnetisation M which will produce magnetic field at the center of the gap.

Explanation:

A bound surface current will flow around the square cross section in the direction perpendicular to the field.

This is like a torus and a square loop with a current flowing the opposite way.

a.) travels faster in solids because the particles are closer together.

air is a gas water is a liquid

hello, i am papaguy.

i have found an answer to your question but use it as information.

information: because weak acids/bases have low concentration of hydrogen ions, the addition of water has a large impact on the ph. 2. a difference in 1 unit is a 10x difference in concentration for example; a liquid with ph of 3 is 10x more acidic than a liquid with a ph of 4. therefore, a liquid with a ph of 3 is stronger.

best of luck!