A positively charged particle is at rest on the positive z axis at the point (0,

Question

A positively charged particle is at rest on the positive z axis at the point (0,0,z0) in reference frame S. Reference frame S is moving along the positive x axis of S, reference frame S is moving along the negative x axis, and reference frame S is moving along the positive y axis, all with speed v relative to S. The axes of all the reference frames are oriented the same way, and their origins coincide at instant t = 0, when observers in each reference frame make measurements.

What can be said about the electric field E measured in the reference frame S'? Check all that apply. The electric field E is directed away from the particle The electric field E is directed toward the particle The magnitude of the component E s equal to the magnitude of the component E in the reference frame S The magnitude of the component E is less than the magnitude of the component E, in the reference frame S The magnitude of the component E. is greater than the magnitude of the component Ez in the reference frame S The magnitude of the component is equal to the magnitude of the component Ev in the reference frame S. The magnitude of the component E is less than the magnitude of the component Ey in the reference frame S The magnitude of the component E s greater than the magnitude of the component Ey in the reference frame S. The magnitude of the component E is equal to the magnitude of the component Ez in the reference frame S. The magnitude of the component E is less than the magnitude of the component Ez in the reference frame S The magnitude of the component E is greater than the magnitude of the component E. in the reference frame S.

Explanation / Answer

In all frames S, S', S'', S''', one can measure the electric field as charge z-axis will not be changed and charge is present on z-axis.

So depending on the speeds the x-component and y-component of the electric field may change.

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