Two large parallel plates are separated by a distance of 5 cm. The plates have equal but opposite charges that create an electric field in the region between the plates. An α particle (q = 3.2 times 10-27 kg) is released from the positively charged plate, and strikes the negatively charged plate 2 t
Two large parallel plates are separated by a distance of 5 cm. The plates have equal but opposite charges that create an electric field in the region between the plates. An α particle (q = $3.2 \times 10^{-27}$ kg) is released from the positively charged plate, and strikes the negatively charged plate $2 \times 10^{-6}$ sec. later. Assuming that the electric field between the plates is uniform and perpendicular to the plates, what is the strength of the electric field? [5]
Quantity Value ------ Plate separation $d = 5 \text{ cm} = 0.05 \text{ m}$ Mass of α-particle $m = 6.68 \times 10^{-27} \text{ kg}$ (standard value) Charge of α-particle $q = 3.2 \times 10^{-19} \text{ C}$ (standard value) Time to cross gap $t = 2 \times 10^{-6} \text{ s}$ Initial velocity