A straight wire carries a current of 40 A in a uniform magnetic field (magnitude = 80 mT). If the force per unit length on this wire is 2.0 N/m, determine the angle between the wire and the magnetic field
a. either 39° or 141°
b. either 25° or 155°
c. either 70° or 110°
d. either 42° or 138°
e. either 65° or 115°
a
You might also like to view...
On bracket ABCDEF, each y-direction force acts at the center of the bar segment to which it is applied (see figure). All turns of ABCDEF are 90o angles. The resultant moment at B (MB) for this parallel force system is (in N?m)
(A) 395j 1 1080k
(B) 415i 1 875k
(C) 485i 2 913k
(D) 2485i 1 913k
What is the source of Jupiter's nonthermal radio radiation?
What will be an ideal response?
Thrust a magnet into the opening of a rubber band and it
A) rotates. B) then has a current in it. C) both of these D) neither of these
When spearing a fish with a regular spear, to compensate for refraction, throw your spear
A) directly at the sighted fish. B) above the sighted fish. C) below the sighted fish.