TWO QUESTIONS (1). In the figure, a uniform, upward-pointing electric field E of
ID: 1900027 • Letter: T
Question
TWO QUESTIONS
(1). In the figure, a uniform, upward-pointing electric field E of magnitude 4.00?103N/C has been set up between two horizontal plates by charging the lower plate positively and the upper plate negatively. The plates have length L = 4 cm and separation d = 2.00 cm. Electrons are shot between the plates from the left edge of the lower plate.
The first electron has the initial velocity v0, which makes an angle ?=45? with the lower plate and has a magnitude of 8.45?106m/s. Will this electron strike one of the plates? If so, what is the horizontal distance from the left edge? If not enter the vertical position at which the particle leaves the space between the plates.
(2). Another electron has an initial velocity which has the angle ?=45? with the lower plate and has a magnitude of 5.52?106m/s. Will this electron strike one of the plates? If so, what is the horizontal distance from the left edge? If not enter the vertical position at which the particle leaves the space between the plates.
Explanation / Answer
answer we can ignore gravity, t=4x10^-2/1.07x10^7cos(45) vertical distance traveled=t.v.sin(45) - Eet^2/m calculate the distance if it is more than 2cm it hit the upper plate,it is is less than 0 then it hit the lower plate. if it is between 0 and 2 then that's ur answer. if it isnt now put vertical distance fixed,find time and then find horizontal distance.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.