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12 Nov 2019

An electron is accelerated horizontally from rest in atelevision picture tube by a potential difference of 5500 v.then passes between two horizontal plates 6.5 cm long and 1.3cm apart that have a potential difference of 250 v. Atwhat angle θ will travel the electron after passing between theplates?

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Trinidad Tremblay
Trinidad TremblayLv2
29 Mar 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions


a) Two parallel plates are separated by 2.0 cm and have apotential difference between them of 30 V. The mass of an electronis 9.1 x 10^-31kg and the charge of an electron is 1.6 x 10^-19 C.The electron field between the plates is constant in magnitude anddirection. What is the magnitude of the electric field between theplates?

b) The capacitance of the parallel plates is 3.7 μF. What is themagnitude of the charge on each plate?

c) If an electron is initially at rest on the negatively chargedplate, and is allowed to accelerate toward the positive plate, whatis the speed of the electron just before it hits the positiveplate?

Two parallel plates (as in procedure 2) are parallel to the floor,distance 3.59 cm. The difference in potential between the plates is162 V, with the upper plate at the higher potential. Assume theplates are very large (so the electric field is approximatelystraight lines), and no other charges are nearby.

a) The direction of the field is (pick one)
1. downward above the plates, downward below the plates, downwardbetween the plates
2. zero outside of the plates, downward between the plates
3. zero outside of the plates, upward between the plates
4. upward above and below the plates, upward between theplates
5. upward above the plates, downward below the plates, upwardbetween the plates
6. downward above the plates, upward below the plates, upwardbetween the plates
7. downward above and below the plates, upward between theplates
8. downward above the plates, upward below the plates, zero betweenthe plates
9. upward above and below the plates, downward between theplates
10. downward above the plates, upward below the plates, downwardbetween the plates
11. upward above the plates, downward below the plates, downwardbetween the plates
12. downward above and below the plates, zero between theplates
13. upward above and below the plates, zero between theplates
14. upward above the plates, downward below the plates, zerobetween the plates

b) As you move upward, from the negative plate to the positiveplate, the electric field will (pick one)
1. increase in magnitude, remain in the same direction
2. decrease in magnitude, remain the the same direction
3. increase in magnitude, reverse direction
4. have the same magnitude, reverse direction
5. decrease in magnitude, reverse direction
6. have the same magnitude and remain in the same direction


c) An electron (mass 9.11x10-31 kg, charge 1.60x10-19 C) is placednear the negative plate. The force felt by the electron at thispoint is
_____ N

d) Suppose the electron starts at rest on the negative plate. Whenit arrives at the positive plate, its speed will be
________ m/s

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