1.Two parallel metal plates are seprarte by a gap of 1cm. The space between the

Question

1.Two parallel metal plates are seprarte by a gap of 1cm. The space between the plates is a vacuum. (a) If the potential difference across the plates is 10v, what is the magnitude of the electric field between the plates? (b) What is the magnitude of the electric field outside the plates? (c) If an electron starts from rest and is accelerated from the negatively charged plate to the positively charge plate, what would its kinetic energy be when it reaches the positively charge plate, in eV units. (d) What would the electrons speed be when it reaches the positive plate?

Explanation / Answer

follow this Okay so this looks like a problem that involves kinematics with electricity and magnetism Electron charge = 1.6E-19 Coulombs mass = 9.109 E-31 Kilograms First calculate the Force on the electron. F = q * E = 1.6E-19 Coulomb * 2.40E4 N/C = 3.84E-15 Newtons a = F/m (newtons 2nd law) = 3.84E-15 Newtons/9.109 E-31 Kilograms a = 4.216 E 15 m/s^2 Okay we can use the equation independent of time (v final)^2 = (v initial)^2 + 2*a*change in distance v initial = 0 because it was at rest v final = sqrt (2*a*1.50E-6 m) and that should get you the final speed of electron.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.