Question

Electrons inside a particular X-ray tube travel d-5.5 cm. The electrons begin at rest and accelerate to a speed that is,f=1/12 of the speed of light. Calculate the strength of the constant electric field that caused this acceleration. PAPER SOLUTION ▼ INTERPRET ldentify all of the true statements. A. A proton would have the same acceleration because it has the same charge as an electron. B. A constant electric field will cause an electron to accelerate. C. A proton would accelerate in the opposite direction because it has the opposite charge from an electron. D. An electron at rest in a constant electric field will begin to move (in the absence of other forces). E. A proton would have a different acceleration because it has a different mass from an electron. F. The electron will move in the direction that the electric field points. G. None of the above.

Answer 1

The acceleration of the electron = a a = f^2/2d;velocity f = c/12;c = 3.0e + 08 m/s d = distance travelled = 5.5 cm implies a = 5.6740e + 015 m/s^2 strength of electric field = E= F/q = ma/q m = electron mass q = electron charge we plug the values in hand while using the relation give us E = 3.2260e + 04 N/C following points are true B. constant electric field will cause an electron to accelerate C. A proton would accelerate in the opposite direction because it has the opposite charge D. an electron at rest in a constant electric field will begin to move E. A proton would have a different acceleration because it has a different mass from electron