Electric field is defined as Select One of the following (a) something charge ma

Question

Electric field is defined as Select One of the following (a) something charge makes. (b) energy per unit charge. (c) force per unit charge. (d) energy per unit force. There is considerable excitement about the possibility of building a particle accelerator the size of a table top. These devices use the electric field in a plasma wave to accelerate the particles. They claim an electric field of 1.0 times 10^11 _N^C. How long would it take this field to accelerate an electron (mass = 9.11 times 10^-31 kg and charge = 1.6 times 10^-19 C) to the speed of light (r = 3.0 times 10^8 m/s). Assume constant acceleration and neglect relativity. For those of you who have forgotten absolutely everything from PHYS 111. Select One of the following: (a) 1.3 times 10^-2s (b) 3.2 times 10^1s (c) 6.5 times 10^4 s (d) 1.7 times 10^-14s (e) 9.1 times 10^-7 s The temperature of ocean water and the velocity of the water flow change with the position in the ocean. Which of the following

Explanation / Answer

(3.1)

electric field is defined as force per unit charge.

according to the lorentz force law

F = electric force + magnetic force

F = q*E + q*(v x B)

F = q*E

E = F / q

so, we can see that electric field is defined as force per unit charge.

(3.2)

we know that

F = m*a ...eq1

electric force is

F = q*E ...eq2

from equation 1 and 2

a = q*E / m

a = 1.6*10^(-19)*1*10^11 / 9.1*10^(-31)

a = 1.75*10^22 m/s^2

from equation of motion,

v = u + a*t

(u = 0)

t = v / a

t = 3*10^8 / 1.75*10^22

t = 1.71*10^(-14) s

so, it would take 1.71*10^(-14) s

answer

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

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