Question

A)derive the expression for the torque acting on the rectangular current carrying coil of a galvanometer. why is the magnetic field made radial?
b)an alpha particle is accelerated through a potential difference of 10kv and moves along x- axis. it enters in a region of uniform magnetic field b=2x 10-3 t acting along y-axis. find the radius of its path.

Answer 1

Answer:

(B)

Explanation:

Answer 2

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