Force on a Wire: A rectangular coil, with corners labeled ABCD, has length L and width w. It is placed between the poles of a magnet, as shown in the figure. If there is a current I flowing through this coil in the direction shown, what is the direction of the force acting on section CD of this coil?
A. perpendicular to and into the page
B. perpendicular to and out of the page
C. in the direction of the magnetic field
D. in the opposite direction of the magnetic field
E. The force is zero.
Answer: B
You might also like to view...
About 78% of the air is composed of
a)carbon dioxide. b)oxygen. c)nitrogen. d)argon.
If I double the mass per unit length of guitar string, its natural frequency changes by what factor?
a. 2.0 c. 1.0 b. 1.4 d. 0.71
Which one of the following is TRUE?
A. Irregular galaxies rarely have star formation taking place in them. B. Most galaxies appear to be approaching the Milky Way Galaxy. C. Most elliptical galaxies contain only young stars. D. Smaller galaxies called dwarf galaxies tend to be found around larger galaxies like the Milky Way. E. Galaxy collisions destroy most of the stars in the galaxies involved.
How do the size and mass of Jupiter's core compare to the size and mass of Earth?
A) It is the same size and mass.
B) It is about 10 times larger in size and the same mass.
C) It is about the same size but is 10 times more massive.
D) It is about 10 times larger both in size and mass.
E) Jupiter doesn't have a core—it is made entirely from hydrogen and helium.