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Moving Charges And Magnetism

Question

Wired Faculty App

Two long parallel wires P and Q are held perpendicular to the plane of the paper with distance of 5 m between them. If P and Q carry current of 2.5 A and 5A respectively in the same direction, then the magnetic field at a point half way between the wire is
$μ_{0} / π$
$\sqrt{3} μ_{0} / π$
μ₀/2 $π$
μ₀/2 $π$

Solution

C.

μ₀/2

π

Some More Questions From Moving Charges And Magnetism Chapter

Answer the following questions:
A charged particle enters an environment of a strong and non-uniform magnetic field varying from point to point both in magnitude and direction, and comes out of it following a complicated trajectory. Would its final speed equal the initial speed if it suffered no collisions with the environment?

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