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f. What is true of the voltage inside a solid conductor in electrostatic equilibrium? Choose one! The voltage inside a positively charged conductor increases as one approaches the center. The voltage inside a positively charged conductor decreases as one approaches the center. The voltage inside a conductor must be zero. The voltage inside a conductor is the same everywhere inside and is equal to the voltage at the surface. i. ii. iii. iv. g. What is the voltage difference between an initial point at a distance 4b from the central axis and a final point at the center axis of the metal cylinder? No new calculation should be required.

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A cell phone battery uses chemistry to create a charge separation between the terminals (anode and cathode). Such a battery is listed as having a capacity of Q = 7.5  × 10–8 C.   (a)  If this charge separation consisted entirely of free electrons, how many free electrons would be present in the battery? (b)  If the operation of the cellphone requires that 1.1 × 106 electrons move through the circuit every second, how long will a full charge of the battery last in seconds? (c)  What current in amperes is passing through the phone?

v can be determined from: morbol Combining like terms gives: e where AV- accelerating voltage. Rearranging gives: 2eAV m Substitution of (equation 2) into (equation 1) gives: Data N R V T 1 2 m I 22 v² = mv² = eAV, 150 2V nottom of B²r² e 1 2eV m Br mm, qque aswog ogslov rigid lino sifodinilladut m Procedure: C xt)s (equation 2) Sad m 99781 0.140[m] 150 V 2.15CM 10.0215 M 2.04 (equation 3) 1. Set the accelerating voltage and current as given by the instructor.non W 2. Measure the diameter of the circle formed by the electron beam with the centimeter scale next to the vacuum tube. Record the radius of the beam in the data table (not the diameter). :noftaups 901 maoil bur N R V T 101 I Insanal del inobra woman de 190hef de (012) 150 turns 0.140[m] I, SA M 200 V 123.3 cm 0.033m

For the circuit shown in the figure below, C = 7.82 µF, & = 80 V, and R = 490 2. After having been at contact a for a long time, the switch throw is rotated to contact b. A с R 1) What is the charge on the upper plate of the capacitor just as the switch throw is moved to contact b? μC Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 2) What is the current just after the switch throw is rotated to contact b? A Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 3) What is the time constant of this circuit? ms Submit You currently have 0 submissions for this question. Only 10 submission are allowed. You can make 10 more submissions for this question. 4) How much charge is on the upper plate of the capacitor 6.4 ms after the switch throw is rotated to contact b? μC Submit

Problem 5: In the circuit below AVbat. C1 = 15 µF, C2 = 20 µF, C3 = 30 µF are initially uncharged. (a) What is Q1,a, Q2,a, Q3,a? The charges on the capacitors when S is closed at position a. Answers: Q1.a The switch is then put in position b. What is Q1,b, Q2,b, Q3,6? The charges on the capacitors when S is put in position b. Answers: Q1,b = 833.3 µC, Q2,6 = 666.7 µC, Q3,6 = 666.7 µC. 100 V, the switch S is initially open, and the capacitors = 1500 µC, Q2,a = 0 µC, Q3,a = 0 µC. (b) b а C2 AVpat C1 C3