Answer:
<em>"the magnitude of the magnetic field at a point of distance a around a wire, carrying a constant current I, is inversely proportional to the distance a of the wire from that point"</em>
Explanation:
The magnitude of the magnetic field from a long straight wire (A approximately a finite length of wire at least for close points around the wire.) decreases with distance from the wire. It does not follow the inverse square rule as is the electric field from a point charge. We can then say that<em> "the magnitude of the magnetic field at a point of distance a around a wire, carrying a constant current I, is inversely proportional to the distance a of the wire from that point"</em>
From the Biot-Savart rule,
B = μI/2πR
where B is the magnitude of the magnetic field
I is the current through the wire
μ is the permeability of free space or vacuum
R is the distance between the point and the wire, in this case is = a
Explanation:
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D. a train on a straight track
Answer:
Explanation:
You need to give the timeline of the events mixed up so we can under stand your question. If you want to learn more about this go to the internet it might help you
Answer:
The magnitude of the displacement is 6.00 m.
Explanation:
Given that,
Radius = 3.00 m
Displacement :
The displacement is the shortest distance between initial and final points,
We need to calculate the magnitude of the displacement
Using formula of displacement
Put the value into the formula
Hence, The magnitude of the displacement is 6.00 m.