CALC In Fig. 29.23 the capacitor plates have area 5.00 cm2 and separation 2.00 mm. The plates are in vacuum. The charging current iC has a constant value of 1.80 mA. At t = 0 the charge on the plates is zero. (a) Calculate the charge on the plates, the electric field between the plates, and the potential difference between the plates when t = 0.500 μs. (b) Calculate dE/dt, the time rate of change of the electric field between the plates. Does dE/dt vary in time? (c) Calculate the displacement current density jD between the plates, and from this the total displacement current iD. How do iC and jD compare?
Learn your wayIncludes step-by-step video
Chapter 29 Solutions
University Physics with Modern Physics (14th Edition)
Additional Science Textbook Solutions
The Cosmic Perspective
Conceptual Physical Science (6th Edition)
The Cosmic Perspective (8th Edition)
College Physics
An Introduction to Thermal Physics
University Physics Volume 2
- A steady stream of +2e ions, moving at speed, v = 1.94 x 107 m/s, is focused into a tight beam with radius, r = 15.7 cm, and pointed at a target. (a) What is the beam current if 3.10 x 1016 ions smash into the target each second? mA (b) What is the ion number density (i.e. ions per unit volme) of the beam? ions/m³ n =arrow_forwardIn Fig.22, the wire bent in the form of semi-ellipses with semi-axes a=20 cm, b=10, c=10cm, d=5 cm, is made of a material with resistivity p = 1.72x10-8 m, and section diameter D=4 mm. Find the current intensity in the wire, if the potential difference is AV=4 mV. b AV Fig.22 a darrow_forward3.30P) Determine the B field on the axis of a circular cylinderical shell. The cylinder has a Radius b, length L, and the surface current density j = Ims@. Calculate the B in the cylinder by using Ampere's Law for very long L RO, 0, 2) Jmsarrow_forward
- At room temperature, What is the strength of the electric field in a 12-gauge copper wire with a diameter of 2.05mm that is needed to cause a 2.75A current to flow? What field would be needed if the wire were made of silver instead?arrow_forwardA (1.91x10^2)-mA current is used to charge up a parallel plate capacitor. A large square piece of paper is placed between the plates and parallel to them so it sticks out on all sides. What is the value of the integral P B. ds around the perimeter of the paper? Express your result in T.m with three significant figures.arrow_forward6.0 A current flows through a 5.0 m thin and straightconductor wire. What is the magnitude of themagnetic field (in unit of nT) at a distance above4.0 m from the midpoint of the wire.(Take µ0 =4πx10−7 T.m/A )arrow_forward
- An air cylindrical capacitor with a dc voltage V= 200 V applied across it is being submerged vertically into a vessel filled with water at a velocity v = 5.0 mm/s. The electrodes of the capacitor are separated by a distance d = 2.0 mm, the mean curvature radius of the electrodes is equal to r = 50 mm. Find the current flowing in this case along lead wires, if d <r.arrow_forwardEquation q = (I/ω) sinωt was derived by using the relationship i = dq/dt between the current and the charge on the capacitor. In Fig. the positive counterclockwise current increases the charge on the capacitor. When the charge on the left plate is positive but decreasing in time, is i = dq/dt still correct or should it be i = -dq/dt? Is i = dq/dt still correct when the right-hand plate has positive charge that is increasing or decreasing in magnitude? Explain.arrow_forwardThe equations of the currents in two parallel-connected electric devices are i1 = 11.3 sin (377t + /4) and i2 = 8.5 sin (377t - /4). What is the rms value of the resultant current?arrow_forward
- In Fig.01, the variable cross section of a circular conductor with a non-uniform diameter that conducts a current of intensity I=5 A is shown. The radius of the cross section A1 is R1=0.4 cm. If the current density through A2 is one quarter of the value through A1, what is the radius of the conductor in A2? Fig.01 A2arrow_forwardQuestion #1. Consider a current-carrying circular wire with radius r. Find the angle between the infinitesimal length dl and some distance h? +z dl h dB +y y Current-carrying circular wire Note: radius r is perpendicular to the screen Select one: O 90° O 0° O 180° O 270°arrow_forward7. A sheet of copper foil 1 mm thick, 5 cm wide and 1.75 m long is connected to a voltage source as shown. There is a magnetic field B = 2.5 T into the page. Assume copper has conductivity σ = 5.96 x 107 mho/m and a charge carrier density n = 1028 electrons/m³. a) What is the current density J in the foil? b) What is the Hall voltage as measured by the voltmeter? c) Which point is at a higher potential, a or b? Voltmeter 20 Varrow_forward
- College PhysicsPhysicsISBN:9781305952300Author:Raymond A. Serway, Chris VuillePublisher:Cengage LearningUniversity Physics (14th Edition)PhysicsISBN:9780133969290Author:Hugh D. Young, Roger A. FreedmanPublisher:PEARSONIntroduction To Quantum MechanicsPhysicsISBN:9781107189638Author:Griffiths, David J., Schroeter, Darrell F.Publisher:Cambridge University Press
- Physics for Scientists and EngineersPhysicsISBN:9781337553278Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningLecture- Tutorials for Introductory AstronomyPhysicsISBN:9780321820464Author:Edward E. Prather, Tim P. Slater, Jeff P. Adams, Gina BrissendenPublisher:Addison-WesleyCollege Physics: A Strategic Approach (4th Editio...PhysicsISBN:9780134609034Author:Randall D. Knight (Professor Emeritus), Brian Jones, Stuart FieldPublisher:PEARSON