A circular loop of radius R is bent a lo...

A circular loop of radius R is bent a long a diameter and given a shape as shown below.

One of the semicircles (KNM) lies in XZ plane and the other one (KLM) lies in YZ plane with their centres at origin. Current l is flowing through each of the semicircles.
A particle of charge q is released at the origin with a velocity `oversetrarrV=-v_0uarr`. Find the instantaneous force `oversetrarrF` on the particle. Assume the space is gravity free.

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A wire loop carrying a current l is placed in XY plane as shown below The extremities M and N of the current loop subtends an angle 120^@ at the centre P of the circular part of the loop. If a particle with charge +Q and mass m is placed at the centre P and given a velocity oversetrarrv along NP, find the instantaneous acceleration.

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