Two mutually perpendicular long straight conductors carrying uniformly...
Let us name the wire having charge density
, the wire 1 and the other having charge density
, wire 2. Wire 1 is placed along z-axis i.e. normal to the screen while wire 2 is along y-axis.
We have from the triangle having its sides as a, l and r
This can be resolved into x- and y-component. It is clear from the diagram that the y-component of this field is cancelled out due to the y-component of the field at a point same distance away on the other side of the point P (P is the point where the common perpendicular meets the wire 2). Thus for the whole wire 2, all the y-components are cancelled out whereas the x-components add up (see the x- and y-components shown by the dashed arrows in the diagram.
It is interesting to note that the force is independent of the distance between the wires.
While arriving at the result, it is assumed that the uniform charge distribution remains unchanged due to the field of one wire acting on the charge on the other wire. If this is not the case, the y-components of the field (see diagram) will cause charge to flow towards the ends of the wires and things will be complicated.
Two mutually perpendicular long straight conductors carrying uniformly...
Interaction between Perpendicular Conductors
- When two perpendicular conductors carrying charges are placed at a distance a from each other, the interaction between them depends on this distance a.
Effect of Distance a
- As the distance a between the conductors increases, the interaction between them decreases.
- This is because the electric field produced by one conductor at the location of the other conductor decreases with increasing distance.
- The force between the conductors is directly proportional to the product of their linear charge densities and inversely proportional to the square of the distance between them.
Mathematical Representation
- The interaction between the conductors can be mathematically expressed as F = k * a1 * a2 / a^2, where F is the force between the conductors, k is the electrostatic constant, a1 and a2 are the linear charge densities of the conductors, and a is the distance between them.
Conclusion
- In conclusion, the interaction between two perpendicular conductors carrying charges depends on the distance between them. As the distance increases, the force between the conductors decreases. This relationship is governed by Coulomb's law and the principles of electrostatics.
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