If a = 1.0 cm, b = 3.0 cm, and I = 30 A, what is the magnitude of the magnetic field at point P?
A. 0.62 mT
B. 0.59 mT
C. 0.35 mT
D. 0.31 mT
E. 0.10 mT
Answer: D
You might also like to view...
Space-time will be flat if
a. the Universe is expanding. b. the Universe is accelerating. c. the average density of the Universe is equal to the critical density. d. the Universe is finite. e. the Universe is homogeneous and isotropic.
All of the following are units used to describe radiation dosage in humans except
A) curie. B) rad. C) rem. D) RBE. E) sievert.
What is the composition of the gas clouds (nebulae) we see in space?
a. about half hydrogen and helium, half heavier elements (iron, carbon, silicon, etc.) b. about 98% hydrogen and helium, and 2% heavier elements c. about 2% hydrogen and helium, and 98% heavier elements
A mass hanging from the end of a spring has a phase rate of 
= 6.3 s–1 ? 1 cycle/s. Let’s define t = 0 to be when the mass passes x = 0 going up. If its speed as it passes is 1.0 m/s, what is its amplitude A?
A. 0 B. 0.16 m C. 1.0 m D. 6.3 m E. We are not given enough information to answer. F. Some other result (specify)