You obviously need a stronger electromagnet for a particle collider than you do for a speaker, so how do scientists make magnets powerful enough to focus a beam of electrons? The answer is a bit more complicated than simply making them bigger, although that's part of it. The materials you...
Shear strength depends strongly on the applied compressive stress. The design range of allowable shear stress was extended by use of the appropriate composite fabrication method. HPL had the largest design range, and the allowable interlaminar shear stress was 0.254 times the compressive stress....
State two ways by which the strength of an electromagnet can be increased. Briefly define resistance. Comic-book superheroes are sometimes able to punch holes through steel walls. If the ultimate shear strength of steel is taken to be 2.90 x 109 Pa, what force is required to punch t...
(i.e. MR relaxometry). Using an electromagnet whose field strength can be varied by controlling the current in the electromagnet, measurements of the spin relaxation time can be taken at two (or more) magnetic field strengths allowing for an accurate determination of liver iron concentration. ...
When an article of iron is wound by a copper wire and the electric current is sent through the wire, the magnetism is produced in this iron article. If the electric current i: shut off, the magnetism is lost. This is how temporarily magnetism can be produced be creating electromagnetism. ...