A system consists of a thin charged wire ring of radius R and a very long uniformly charged thread oriented along the axis of the ring. With one its ends coinciding with the centre of the ring. The total charge of the ring is equal to q. The charge of the thread (per unit lenght) is equal to lambda. Find the interaction force between the ring and the thread.

A system consists of a thin charged wire ring of radius R and a very l

1.	A system consists of a thin charged wire ring of radius R and a very long uniformly charged thread oriented along the axis of the ring. With one its ends coinciding with the centre of the ring. The total charge of the ring is equal to q. The charge of the thread (per unit lenght) is equal to lambda. Find the interaction force between the ring and the thread.
Answer» Zero `(LAMBDA q)/(4pi epsilon_(0)R)` `(lambda q)/(2 pi epsilon_(0)R)` `(lambda q)/(pi epsilon_(0)R)` ANSWER :B

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