Consider a wire of a circular cross-section with a radius of r = 3.03 mm. the magnitude of the current density is modeled as j = cr2 = 5.25 ✕ 106 a/m4 r2. what is the current (in a) through the inner section of the wire from the center to r = 0.5r?

Explanation:

As we know that current in a wire depends on its current density and given as

so we have

so we will have

now we have to find current in r = 0.5 R

so we have

now plug in all data

graph slopes whilst gas cools, then it is flat whilst conensation to liquid happens, the coolong liquid then graphs as a slope when it solidifies graph is flat

latent heat