Force on a Wire: A wire in the shape of an "M" lies in the plane of the paper. It carries a current of 2.0 A, flowing from A to E. It is placed in a uniform magnetic field of 0.85 T in the same plane, directed as shown on the right side of the figure. The figure indicates the dimensions of the wire. Note that AB is parallel to DE and to the baseline from which the magnetic field direction is measured. What are the magnitude and direction of the net force acting on this wire?
A. 0.40 N perpendicular out of the page
B. 0.10 N perpendicular into the page
C. 0.40 N perpendicular into the page
D. 0.10 N perpendicular out of the page
E. 0.20 N perpendicular out of the page
Answer: D
You might also like to view...
A likely ratio of the masses of oxygen in two different compounds of tin and oxygen, both of which contain the same mass of tin, is
a. 1.42 to 1. b. 3.11 to 1. c. 3.77 to 1. d. 2 to 1.
Consider a small satellite moving in a circular orbit (radius r) about a spherical planet (mass M). The period does not depend upon
A) g at the satellite position. B) the planet mass. C) the satellite mass. D) the radius r. E) the universal gravitational constant.
If Taurus is now rising at sunset, which constellation will rise at sunset next month?
A) Aries B) Scorpius C) Aquarius D) Gemini E) Pisces
Two spaceships, each 100 m long in its own rest frame, approach Earth from opposite directions, with equal speeds relative to Earth. As measured by a passenger in one of the spaceships, the other spaceship is 96 m long
What is the speed of the spaceships relative to Earth? A) c/7 B) c/6 C) c/5 D) c/4 E) c/3