3. One way to generate a uniform electric field is to use a parallel plate capacitor. The two plates of the capacitor each have an area A and are separated by a small distance d. Theplate on the left has charge -3Q and the other plate has a charge +3Q. a. What is the magnitude and direction of the electric field in the gap between the plates? +3Q -3Q A b. Which plate is at a higher voltage? d С. What is the voltage across the plates? ("Voltage across" means the absolute value of the voltage difference.)

College Physics
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Publisher:Raymond A. Serway, Chris Vuille
Chapter16: Electrical Energy And Capacitance
Section: Chapter Questions
Problem 35P: a parallel-plate capacitor with area 0.200 m2 and plate separation of 3.00 mm is connected to a...
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3. One way to generate a uniform electric field is to use a parallel plate capacitor. The two plates of the capacitor each
have an area A and are separated by a small distance d. Theplate on the left has charge -3Q and the other plate
has a charge +3Q.
а.
What is the magnitude and direction of the electric field in the gap between the plates?
-3Q
+3Q
b. Which plate is at a higher voltage?
d
С.
What is the voltage across the plates? ("Voltage across" means the absolute value of the voltage difference.)
d. A positive ion (charge +2e, mass m) is traveling at speed v, at the positive plate toward the negative plate.
What is the ion's kinetic energy just before it hits the negative plate?
A
Transcribed Image Text:3. One way to generate a uniform electric field is to use a parallel plate capacitor. The two plates of the capacitor each have an area A and are separated by a small distance d. Theplate on the left has charge -3Q and the other plate has a charge +3Q. а. What is the magnitude and direction of the electric field in the gap between the plates? -3Q +3Q b. Which plate is at a higher voltage? d С. What is the voltage across the plates? ("Voltage across" means the absolute value of the voltage difference.) d. A positive ion (charge +2e, mass m) is traveling at speed v, at the positive plate toward the negative plate. What is the ion's kinetic energy just before it hits the negative plate? A
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