A long solenoid (diameter = 5.0 cm) is wound with 960 turns per meter of thin wire through which a current of 300 mA is maintained. A wire carrying 12 A is inserted along the axis of the solenoid. What is the magnitude of the magnetic field at a point 2.0 cm from the axis?
A. 0.41 mT
B. 0.48 mT
C. 0.38 mT
D. 0.56 mT
E. 0.24 mT
Answer: C
You might also like to view...
Two lenses, the first with focal length -12.5 cm and the second with focal length 20.0 cm, are separated by 15.0 cm. If an object is place 50.0 cm in front of the first lens, what is the total magnification?
A. 20.0 B. -20.0 C. 1.25 D. -1.25 E. -0.800
The relative brightness of the stars as we see them in our sky is represented by their
A. luminosity. B. absolute magnitude. C. apparent magnitude. D. surface temperature.
If one could observe the individual atoms making up a piece of matter and note that during a process of change their motion somehow became more orderly, then one may assume which of the following in regard to the system?
a. increases in entropy b. decreases in entropy c. gains in thermal energy d. positive work done on
Monochromatic light is light of a single
A) wavelength. B) frequency. C) color. D) all of the above E) none of the above