Two wires with identical compositions (same material) and lengths have the same current flowing through them. Wire A has a diameter that is half as large as wire B. You expect the Joule heating:. a. to be zero in both wires.
b. to be the same in both wires.
c. to be larger in wire A
d. to be larger in wire B.

The scalar triple product computes the magnitude m of the moment of a force vector f about a specified line. it is m = (r × f) · n, where r is the position vector from the line to the point of application of the force and n is a unit vector in the direction of the line. use matlab to compute the magnitude m for the case where f = [12, −5, 4] n, r = [−3, 5, 2] m, and n = [6, 5, −7].