Stationary rod and moving charge * A charge q moves with speed v parallel to a l
ID: 1768261 • Letter: S
Question
Stationary rod and moving charge * A charge q moves with speed v parallel to a long rod with linear (At rest) charge density lambda, as shown in Fig. 5.30. The rod is at rest. If the charge q is a distance r from the rod, the force on it is simply F = qE = q lambda/2phir 0. Now consider the setup in the frame that moves along with the charge q. What is the force on the charge q in this new frame? Solve this by: transforming the force from the old frame to the new frame, without caring about what causes the force in the new frame; calculating the electric force in the new frame.Explanation / Answer
when both are in motion, the relative velocity V' comes into play
which is equals to V1-V2 as both are moivng in same direction.
then force =qV'B
electrical force F= Eq