Physics, 11.05.2021 02:10, manaspercy
The magnetic field created by an infinitely long wire carrying a current, which is given by Equation (28.9), will be used extensively. Of course, there is no such thing as an infinitely long wire! The field of a finite length of wire is derived -- Equation (28.8) -- and the infinite wire field is the result of taking the limit as the length of the wire becomes infinite. How long is "long enough" to be considered infinite? It's easy to say "when the length of the wire is much larger than the distance from it", but that doesn't give an intuitive feel for realistic dimensions. Consider a mechanical analogy: I can approximate the Earth as flat in the immediate region where I'm standing, because the radius of curvature of the Earth is very large compared to my dimensions. I can do the same on the Moon, but not on a basketball. However, bacteria or other single-cell organisms could probably approximate the basketball as flat at their location.
Answers: 1
Physics, 22.06.2019 05:10, adrianaglass12
A- a of 8.00 cm a of 34.0 nc. a , -, a of 25.0 nc is on of a of 15.0 cm .be toto aof ? a) b) c) j d) e)
Answers: 1
Physics, 22.06.2019 11:00, chaycebell6662
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
Answers: 3
Physics, 22.06.2019 16:00, meowmeowcow
Rank the six combinations of electric charges on the basis of the electric force acting on q1. define forces pointing to the right as positive and forces pointing to the left as negative. rank positive forces as larger than negative forces. q1,q2,q3 = positive(+) q1 = + q2 = + q3 = - q1 = + q2= - q3= + q1= - q2= + q3= + q1= + q2= - q3= - q1,q2,q3 = negative
Answers: 1
Physics, 22.06.2019 16:30, makaylahamrick
Which magnetic property best describes a magnet’s ability to act at a distance? magnets are dipolar. magnets attract only certain objects. magnets have magnetic fields. magnets can transfer their properties to certain materials.
Answers: 1
The magnetic field created by an infinitely long wire carrying a current, which is given by Equation...
History, 21.04.2020 17:57
Social Studies, 21.04.2020 17:57
History, 21.04.2020 17:57
Mathematics, 21.04.2020 17:57
Mathematics, 21.04.2020 17:57
Biology, 21.04.2020 17:57