# Moving Charged Particle

The above diagram shows a charged particle starting from position a, moving through two separate uniform electric fields in a uniform magnetic field, and eventually arriving at e. The direction of the magnetic field is upward, vertical to the plane. The path that the charged particle moves along is a $$\to$$ b $$\to$$ c $$\to$$ d $$\to$$ e. Which of the following explanations is correct?

a) The charged particle is positively charged.
b) The speed of the charged particle from position b to position c is constant.
c) The speed of the charged particle at position d is larger than that at position b.

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