After the electrons in Example 16.9 pass through the anode, they are moving at a speed of 8.4 × 106 m/s. They next pass between a pair of parallel plates [(A) in Fig. 16.35]. The plates each have an area of 2.50 cm by 2.50 cm and they are separated by a distance of 0.50 cm. The uniform electric field between them is 1.0 × 103 N/C and the plates are charged as shown.

(a) In what direction are the electrons deflected?
(b) By how much are the electrons deflected after passing through these plates?