The image you uploaded contains a physics problem involving an electric field and a magnetic field. It asks to calculate the magnetic field strength and its relationship to changes in the magnetic field. Specifically:

1. The first part asks for the ratio of the magnetic field strength and the magnetic induction at a point, given that the particle moves at a certain speed with a specific angle relative to the magnetic field.
2. The second part inquires about the effect of changing the magnetic field on the motion of the particle, asking for the new ratio of the magnetic field strength compared to the previous state.

Let me know if you want help solving these problems or if you'd like me to explain further. Would you like me to walk you through solving it step by step?