Problem 5: If the capacitor plates in the figure have radius R and the electric field...
there is no wire between the capacitor plates
Prnlherm t l dhr opaci ne rd dE/dt-exp(ut) a) Find an expression for the induced magnetic field for r d) What is the current in the wire? R. Do the same for 2 R As charge flowsE field between onto plates,.lates increases. Field lines of induced B field are circles.
The induced magnetic field at a radial distance r from the central axis of a circular parallel-plate capacitor is B. If the capacitor plates have a radius R, write an expression for the rate dE/dt at which the electric field between the plates is changing.
Suppose that, instead of forming a complete ring, the two ends of the wire are connected to the electrodes of a parallel-plate capacitor. The capacitor plates are circular with radius 1.0 cm and separation 1.0 mm. Again, the magnetic field strength is initially B 0.750 T and subsequently decreases in time at the constant rate -0.035 T/s (a) Sketch a charge diagram illustrating the final charge distribution on the capacitor plates When this final distribution is obtained, what is the...
a) A capacitor is made of two circular plates of metal with radius r separated by distance d. The gap between them is vacuum. What is the capacitance of the capacitor? (5 pts) b) A long wire is hooked up to the capacitor as shown in figure 1 below. A current runs through the wire to charge the capacitor. At what rate is the electric field between the capacitor plates changing? (5 pts) Figure 1: Charging Capacitor
A parallel-plate capacitor has closely spaced circular plates of radius R = 2.00 cm. Charge is flowing onto the positive plate at the rate I = dQ/dt = 2.72 A. The magnetic field at a distance r = 2.00 cm from the axis of the plates is approximately A. 136 mT B. 272 mT C. 16.5 mT D. 457 mT
In the figure, a capacitor with circular plates of radius R - 29.0 cm is connected to a source of emf 8 = e... sin wt, where &... = 220 V and w - 195 rad/s. The maximum value of the displacement current is id = 3.50 HA. Neglect fringing of the electric field at the edges of the plates. (a) What is the maximum value of the current / in the circuit? (b) What is the maximum value of...
In the figure (Figure 1) the capacitor plates have area 31.00
cm2 and are separated by a distance of 2.00 mm (the figure is not
drawn to scale). The plates are in vacuum. A sinusoidal potential
difference with a maximum value of 740 V and a frequency of 60 Hz
is applied across the plates; that isV(t)=( 740 V
)sin[2?(60Hz)t]. The
current iC(t) which charges or
discharges the capacitor is also sinusoidal. In the figure, the
current is shown at...
5. A 10-cm diameter parallel plate capacitor has a 1.00 mm spacing (see the figure). A continues current I is being used to charge this capacitor, and this current causes the electric field between the plates to change at a rate of 5.0 x 10 volt/m s. R=5 mm a. Find the magnetic field (magnitude and direction) at a point 2.0 mm radially from the center of the wire leading out of the capacitor (see the figure). (10 pts.) b....
The circular region with radius R = 7.65 cm shown in the figure has an electric field directed upwards perpendicular to the region. The amount of electric flux through a circle of radius r around the center of the region is given by the following expression: What is the magnitude of the displacement current at a = 0.315 s through the circular area with a radius r= 5.55 cm from the center of the circular region? What is the magnitude of the...
A parallel plate capacitor with circular plates has a radius of 25cm and a plate spacing or 0.2mm. The plates are charged to 90.0V. a) What is the electric field between the plates? The plates are discharged in 0.25ms. b) What is the induced magnetic field 15cm from the axis? c What is the induced magnetic field 30cm from the axis?
A parallel plate capacitor with circular plates has a radius of 25cm and a plate spacing or 0.2mm. The...