An emf is induced in a conducting loop of wire 1.40 m long as its shape is changed from square to circular. Find the average magnitude of the induced emf if the change in shape occurs in 0.125 s and the local 0.455-T magnetic field is perpendicular to the plane of the loop.

Which of the following describes something an engineer would probably do first when developing new technology meant to reduce ocean pollution? o a. evaluate the benefits and challenges of using certain chemicals to purify water. o b. research new scientific findings in regard to ocean cleanup. o c. identify the need to reduce ocean pollution. o d. research what has been done in the past to clean up oceanic oil residue.

If the chemical properties of a substance remain unchanged and appearance or shape of a substance changes it is called a ?

How can you increase the strength of an electromagnet?