Question

If no energy is lost as heat and no electrical energy remains after it runs through the coil, how much of the electrical energy flowing through the copper wire is transformed into mechanical energy?
A.
half of it
B.
all of it
C.
a tiny fraction of it
D.
none of it

Answer 1

If no energy is lost as heat and no electrical energy remains after it runs through the coil, then all of the electrical energy flowing through the copper wire is transformed into mechanical energy. Therefore, the correct answer is:

B. all of it