FIGURE Q26.10 shows a 3 V battery with metal wires attached to each end. What are the potential differences
Want to see the full answer?
Check out a sample textbook solutionChapter 26 Solutions
PHYSICS F/SCI.+ENGR.W/MODERN...-W/CODE
- Figure P27.75 shows four capacitors with CA = 4.00 F, CB = 8.00 F. CC = 6.00 F. and CD = 5.00 F connected across points a and b, which have potential difference Vab = 12.0 V. a. What is the equivalent capacitance of the four capacitors? b. What is the charge on each of the four capacitors?arrow_forwardWhat is |λ|? A very long wire carries a uniform linear charge density λ. Using a voltmeter to measure potential difference, you find that when one probe of the meter is placed 4.90 cm from the wire and the other probe is 3.10 cm farther from the wire, the meter reads 620 V.arrow_forwardThe girl in Figure 26.12 has her hand on the sphere of a Van de Graaffgenerator that is at a potential of 400,000 V. She is standing on an insulating platform, so no current flows through her. But what happens if she touches something that is grounded? Is she still safe? Figure P26.57 shows the equivalent circuit. CVDG = 20 pF represents the capacitance of the Van de Graaff sphere, Cgirl = 100 pF is the capacitance of the girl’sbody, and R = 5 kΩ is the resistance of her body, from one hand to the other. The switch is closed when she touches ground.a. What is the initial current at the instant the switch is closed?b. What is the time constant for the current to decay?c. Occupational safety experts have found that a shock is safe if the product of the voltage, the current, and the time the current is delivered is less than 13.5 V • A • s = 13.5. Estimate this product. Is this shock safe?arrow_forward
- The circuit in the drawing shows two resistors, a C = 7.0 μF capacitor, and a V = 10 V battery. When the capacitor is fully charged, what is the magnitude (q) of the charge on one of its plates?arrow_forwardTwo capacitors of capacitance C1 = 100 nF and C2 = 5 μF are connected in series across a cell with emf V = 5V. What is the voltage across C2? Select one: a. 2.5 V b. 100 mV c. 98 mV d. 4.02 Varrow_forwardSuppose you have a 9.3-V battery, a 1.8 μF capacitor, and a 7.8 μF capacitor. (a) Find the charge and energy stored if the capacitors are connected to the battery in series. Q = ? E = ? (b) Do the same for a parallel connection. Q = ? E = ?arrow_forward
- If 5.0 x 1021 electrons pass through a 20.2 Q resistor in 10 min, what is the potential difference across the resistor? use the charge of the electron to be -1.6 x 1019 Carrow_forwardA proton in a particle accelerator has a velocity of 4 x 10^7 m/s when observed at point A and a velocity of 3 x 10^7 m/s when observed at point B. If the voltage at point A is 800 V, what is the voltage at point B?arrow_forwardIn the figure ℰ1 = 3.22 V, ℰ2 = 0.927 V, R1 = 3.89 Ω, R2 = 2.23 Ω, R3 = 3.65 Ω, and both batteries are ideal. What is the rate at which energy is dissipated in (a) R1, (b) R2, and (c) R3? What is the power of (d) battery 1 and (e) battery 2?arrow_forward
- 2.A 20.0 μF capacitor, 25.0 μF capacitor, and a 50.0 μF capacitor are connected in series to a 24.0 V battery. a.What is the energy stored in each capacitor? b.What is the total energy stored?arrow_forwardC1= 6.0μF C2= 3.0μF Vab = 18V What is the equivalent capacitance, the charge and potential difference for each capacitor when the capacitors are connected in seriesarrow_forwardFour capacitors are connected as shown in Figure P26.17. (a) Find the equivalent capacitance between points a and b. (b) Calculate the charge on each capacitor, taking ΔVab = 15Varrow_forward
- Physics for Scientists and Engineers, Technology ...PhysicsISBN:9781305116399Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningPhysics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage LearningPhysics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
- Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning