A square loop of wire has a current going around it. The magnetic field from the current on each side of the loop results in a magnetic force on the wire on the opposite side. Each resulting magnetic force on the opposite side wire
a. pushes inward on the loop.
b. is actually zero since a current cannot push on itself.
c. depends on whether the current is clockwise of counterclockwise.
d. pushes outward on the loop.
D
You might also like to view...
A solar eclipse may occur
a. when the Moon is first quarter phase. b. when the Moon is 3rd quarter phase. c. when the Moon is full. d. when the Moon is new.
Which of the following was an important source of prebiotic molecules (e.g., amino acids) on the early Earth?
A) molecules produced on the surface by impacts B) molecules produced by chemical reactions near deep-sea ocean vents C) molecules transported to the surface by impacts D) all of these
A CD player uses a laser whose light frequency is 3.85 × 10^14 Hz. Calculate the energy, in joules, of the photons
A straight wire (length = 8.0 m) is bent to form a square. If the wire carries a current of 20 A, what is the magnitude of the magnetic field at the center of the square?
A. 17 ?T B. 14 ?T C. 11 ?T D. 20 ?T E. 36 ?T