(i)
The current present in the region of space between the plates of the capacitor during the discharging of the R C
circuit.
(i)
Answer to Problem 34.1QQ
Explanation of Solution
During the discharging of
Conclusion:
Since, the displacement current is represented by the time varying electric flux and there is no conductor between the plates. Thus, option (b) is correct.
As there is no conductor presents between the capacitor plates, there is no conduction current but the displacement current is present. Thus, option (a) is incorrect.
The displacement current is present but the conduction current is not presents between the plates so it is impossible to present both the currents between the plates. Thus, option (c) is incorrect.
As there is displacement current is present between the plates so it is not correct that there is no current of any type. Thus option (d) is incorrect.
(ii)
The field present in the region of space between the plates of the capacitor during the discharging of the R C
circuit.
(ii)
Answer to Problem 34.1QQ
Explanation of Solution
When a capacitor is fully charged after opening the circuit, after some time it starts to discharge. Due to the discharging of the capacitor there is only electric field is present.
After the some time when the discharging of the capacitor plates take place, the charge particle starts to move from one plate to another plate. This movement of the charge particle creates a magnetic field at the plate. So after discharge of a capacitor plate there is both electric and magnetic fields are present.
Conclusion:
Since, after the discharging of the capacitor plate there is electric field and magnetic field both are present. Thus, option (c) is correct.
As the magnetic field is also present with the electric field then there is no scope that there is no magnetic field. Thus, option (a) is incorrect.
As the electric field is present with the magnetic field then there is no scope that there is no electric field. Thus, option (b) is incorrect.
As the electric field and the magnetic field both are present it is not possible that there is a absence of any field. Thus, option (d) is incorrect.
Want to see more full solutions like this?
Chapter 34 Solutions
EBK PHYSICS FOR SCIENTISTS AND ENGINEER
- In a region of space, the electric field is pointed along the x-axis, but its magnitude changes as described by Ex=(10N/C)sin(20x500t)Ey=Ez=0 where t is in nanoseconds and x is in cm. Find the displacement current through a circle of radius 3 cm in the x = 0 plane at I = 0.arrow_forwardThe potential difference V(t) between parallel plates shown above is instantaneously increasing at a rate of 107V/s. What is the displacement current between the plates if the separation of the plates is 1.00 cm and they have an area of 0.200m2?arrow_forwardA patient in an MRI unit turns his head quickly to one side and experiences momentary dizziness and a strange taste in his mouth. Discuss the possible causes.arrow_forward
- A parallel-plate capacitor with plate separation d is connected to a source of emf that places a time-dependent voltage V(t) across its circular plates of radius r0and area (a) Write an expression for the time rate of change of energy inside the capacitor in terms of V(t) and dV(t)/ dt. (b) Assuming that V(t) is increasing with time, identify the directions of the elecuic field lines inside the capacitor and of the magnetic field lines at the edge of the region between the plates, and then the direction of the Poynting vector S at this location. (c) Obtain expressions for the time dependence of E(t), for B(t) from the displacement current, and for the magnitude of the Poynting vector at the edge of the region between the plates. (d) From S , obtain an expression In terms of ‘(t) and dV(t)/dt for the rate at which electromagnetic field energy the region between the plates. (e) Compare the results of pails (a) and (d) and explain the relationship between them.arrow_forwardIf the electric field of an electromagnetic wave is oscillating along the z-axis and the magnetic field is oscillating along the x-axis, in what possible direction is the wave traveling?arrow_forwardAt what rate must the potential difference between the plates of a parallel-plate capacitor with a 2.0 mF capacitance be changed to produce a displacement current of 1.5 A?arrow_forward
- Which of the following statements contradicts one of Maxwell's equations? A changing magnetic field produces an electric field. The net magnetic flux through a closed loop depends on the current inside. A changing electric field produces a magnetic field. The net electric flux through a closed surface depends on the charge inside. None of these statements contradict any of Maxwell's equations.arrow_forwardAn air-filled capacitor is composed of large parallel circular plates with a common radius of 6.73 cm. At one instant while it is charging, the conduction current in one of the capacitor terminals is 5.37 A. The magnitude of the rate of change of the electric field along a line joining the centers of the parallel plates is most nearly (A) 4.75 x 10-11 V/m-s. (B) 8.60 x 10° V/m-s. (C) 4.28 x 1013 V/m-s. (D) 1.43 x 1012 V/m-s. (E) 2.01 x 10-11 V/m-s.arrow_forwardIn a given region of space there is an electric field that can be described by the equation E = 5tax + 4ay + 2az In the above equation t is the time and ax, ayand az are unit vectors in the x, y and z direction. i)What is the displacement current density in this region? ii)What is the displacement current flowing through the surface S = 2ax + 3ay + az?arrow_forward
- Can there be a stable and unchanging electric or magnetic field in a region of space with no charges (and thus no currents)? Justify your answer using Maxwell’s equations.arrow_forward1) A lamp emits radiation with an rms magnetic field strength of 3.4 x 107 T. In seconds, calculate the time it would take for a target of area 0.04 m² to absorb 310 J of energy if placed under the lamp.arrow_forwardA parallel plate capacitor with circular plates is being charged with a 2.50A current (see figure). The current carrying wire is cylindrical and has radius 1.50mm. The plate capacitor radius is 2.00cm. Assume that the current in the wire and the displacement current in the capacitor gap are both uniformly distributed. (a) What is the magnitude of the magnetic field just to the left of the capacitor at the following radial distance from center: (i) 1.00mm, (ii) 3.00mm, and (iii) 2.20 cm? What is the magnitude of the magnetic field between the capacitor plates at the following radial distances from the center: (i) 1.00mm, (ii) 3.00mm, and (iii) 2.20 cm? (b) id/ 44 +arrow_forward
- Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage LearningCollege PhysicsPhysicsISBN:9781938168000Author:Paul Peter Urone, Roger HinrichsPublisher:OpenStax College