A parallel plate capacitive transducer uses plates of area 450 mm² which are separated by a distance of 0.5 mm. (i) Determine the value of capacitance when the dielectric is air having a permittivity of 8.85 x 10-12 F/m. Determine the change in capacitance if a linear displacement reduces the distance between the plates to 0.46 mm. Determine the ratio of per unit change of capacitance to per unit change of displacement. (ii) (iii)

A parallel plate capacitive transducer uses plates of area 450 mm² which are separated by a distance of 0.5 mm. (i) Determine the value of capacitance when the dielectric is air having a permittivity of 8.85 x 10-12 F/m. Determine the change in capacitance if a linear displacement reduces the distance between the plates to 0.46 mm. Determine the ratio of per unit change of capacitance to per unit change of displacement. (ii) (iii)

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter19: Capacitors

Section: Chapter Questions

Problem 3RQ: A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted...

See similar textbooks

Similar questions

A capacitor uses air as a dielectric and has a capacitance of 3 F. A dielectric material is inserted between the plates without changing the spacing, and the capacitance becomes 15 F. What is the dielectric constant of this material?
A capacitor is made from two flat parallel plates placed 2 mm apart, .and its capacitance at vacuum is 10-12- F , if 200 volt applied in between then a Dielectric material was entered and its Dielectric constant Is 49 , Calculate : a) the new value of capacitance after the entrance of the Dielectric b) what is the value of charge on Dielectric material surface c) the polarization p of the Dielectric material d) calculate the displacement and the field inside the Dielectric
A ceramic capacitor has an effective plate area of 4 cm2 separated by 0.1 mm of ceramic of relative permittivity 100. Calculate the capacitance of the capacitor in picofarads. If the capacitor in part is given a charge of 1.2 µC what will be the p.d. between the plates?
Two concentric cylindrical plates have an outer radius of 4 cm, an inner radius of 3.8 cm, and a cylinder length of 10 cm. The gap of both plates contains air. Specify: a. Capacitance of capacitors (in pF, pico-farad). b. Capacitor charge (in nC, nano-coulomb) if the capacitor is connected to a 12 volt power source. c. Capacitance and charge captor if the gap of both plates is filled by the material with a dielectric constant of 2.3.
Determine the value of the capacitance, in picofarads, of a parallel-plate capacitor using a dielectric of relative permittivity 4.07 with dielectric thickness 33 mm and plate area 46 cm2. Use 8.854 × 10-12 F/m for the permittivity of free space.
The two parallel plates of capacitor, spaced at 1 mm apart both of them carries charges of 80 nC. Calculate the capacitance value, if the sides of square plate is 5 cm?
A parallel-plate capacitor using a dielectric material having an Pr of 2.2 has a plate spacing of 2 mm (0.08 in.). If another material having a dielectric constant of 3.7 is used and the capacitance is to be unchanged, what must the new spacing be between the plates?
A ceramic capacitor is to be constructed to have a capacitance of 0.01µF and to have a steady working potential of 2.5 kV maximum. Allowing a safe value of field stress of 10 MV/m, determine (a) the required thickness of the ceramic dielectric, (b) the area of plate required if the relative permittivity of the ceramic is 10, and (c) the maximum energy stored by the capacitor.
Derive the capacitance for a parallel CIRCULAR plate capacitor d distance apart.
A parallel-plate capacitor consists of square plates of edge length ℓ that are separated by a distance d, where d << ℓ. A potential difference ΔV is maintained between the plates. A material of dielectric constant k fills half the space between the plates. The dielectric slab is withdrawn from the capacitor as shown. (a) Find the capacitance when the left edge of the dielectric is at a distance x from the center of the capacitor. (b) If the dielectric is removed at a constant speed υ, what is the current in the circuit as the dielectric is being withdrawn?
A parallel plate capacitor contains two dielectrics A and B (interfaces parallel to E and D) with relative permittivity of 1.5 and 3.5 respectively. Dielectric B comprises one third of the capacitor's volume and the remaining volume is occupied by dielectric A. If the area of each conducting plate is 3 square meters and the separation between them is 2 mm, find the capacitance
A paper dielectric plate capacitor is to be experimentally tested. The metal plates and the paper material between said plates are all 20 cm in radius and subjected to 10V dc in the test. How much is the capacitance does this capacitor have in picofarads (pF), if the paper material between plates used is 2 cm thick? Input answer in 4 decimal places and in pF. Note: Relative permittivity of the paper ( εr ) : 0.4225