Magnetic Field of a Long Wire: A long wire carrying a 2.0-A current is placed along the y-axis. What is the magnitude of the magnetic field at a point that is 0.60 m from the origin along the x-axis? (?0 = 4? × 10-7 T ? m/A)
A. 0.67 µT
B. 1.3 µT
C. 0.12 µT
D. 6.7 T
E. 12 T
Answer: A
You might also like to view...
Estimate the surface area of an adult human’s head.
A. 0.05 
B. 0.1
C. 0.05
D. 0.01
It's 6 a.m. and the Moon is at its highest point in your sky (crossing the meridian). What is the Moon's phase?
A) new B) first quarter C) full D) third quarter
Which force grows stronger with increasing distance?
A. the force between quarks in colorless combinations B. the force between charges with net charge zero C. the force between masses D. the force between magnets E. None of these choices are correct.
CFC's in the stratosphere ________
a. provide protection from incoming solar radiation b. dissipate within days c. combine with NOX to produce smog d. adsorb ultraviolet light from the sun e. contribute to ozone destruction