An electron travels with speed 1.0 × 10⁷m/s between the two parallel charged plates shown in FIGURE P29.59. The plates are separated by 1.0 cm and are charged by a 200 V battery. What magnetic field strength and direction will allow the electron to pass between the plates without being deflected?

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+ + + + + + + + + + 1.0 cm FIGURE P29.59