The plates of a parallel plate capacitor each have an area of 0.40 m2 and are se
ID: 2213556 • Letter: T
Question
The plates of a parallel plate capacitor each have an area of 0.40 m2 and are separated by a distance of 0.02 m. They are charged until the potential difference between the plates is 3000 V. The charged capacitor is then isolated. Determine the magnitude of the electric field between the capacitor plates. 60 V/m 120 V/m 1.0 Times 105 V/m 1.5 Times 105 V/m 3.0 Times 105 V/m Determine the value of the capacitance in 16 above 9.0 Times 10-11 F 1.8 Times 10-10 F 3.6 Times 10-10 F 4.8 Times 10-10 F 6.4 Times 10-10 F A 30-year-old woman takes a trip on a rocket, leaving her 20-year-old brother behind. She travels at a speed of 0.8 c, and is gone 20 years, according to the younger brother. When she returns, how many years older/younger is she than her brother? 2 years younger 2 years older 3 years older 10 years older 8 years older A positively charged particle is moving in the +y-direction when it enters a region with a uniform electric field pointing in the +x-direction. Which of the diagrams below shows its path while it is in the region where the electric field exists. The region with the field is the region between the plates bounding each figure. The field lines always point to the right. The x-direction is to the right; the y-direction is up.Explanation / Answer
16. V = E.d
3000 = E x 0.02
E = 150000 N/C (D)
17. C = k. o . Area / Separation
k =1
o = 8.85 x 10-12
C = 1 X 8.85 x 10-12 X 0.4 / 0.02 = 1.77 x 10-10 F
(B)
18. Vertical velocity and Horizontal acceleration
Fig (D) is the trajectory