A little magnetic compass has a needle whose tips are clearly labeled N and S. The compass is placed next to a single circular loop of wire lying flat on a wooden table. The current in the loop is clockwise. What happens?
A. The S tip of the needle is attracted toward the loop
B. The needle orients itself with the N tip pointing in the direction of the current in the segment of the loop closest to the needle
C. The needle orients itself with the S tip pointing in the direction of the current in the segment of the loop closest to the needle
D. The N tip of the needle is attracted toward the loop
E. None of these choices are correct
Answer: E
You might also like to view...
The order of evolutionary stages of a star like the Sun would be Main Sequence, giant, planetary nebula, and finally a(n) ________
Fill in the blank(s) with correct word
What element makes up Io's thin atmosphere?
a. sulfur b. hydrogen c. helium d. carbon dioxide e. methane
If a planet has 3 times the radius of the Earth, but has the same density as the Earth, what is the gravitational acceleration at the surface of the planet? (g = 9.80 m/s2)
a. 29.4 m/s2 b. 88.2 m/s2 c. 265 m/s2 d. 3.27 m/s2
A ball of mass mB is released from rest and acquires velocity of magnitude vB before hitting the ground. The ratio of the magnitude of the momentum the Earth acquires to the magnitude of the momentum the ball acquires is
A.
B.
.C.
.D.
E.
.