Question

In: Electrical Engineering

2. A capacitor consists of two metal plates, each 200mm by 300mm, spaced 9mm apart. The...

2. A capacitor consists of two metal plates, each 200mm by 300mm, spaced 9mm apart. The spaced between the metal plates is filled with mica 6mm thick and a layer of paper 3mm thick. The relative permittivity of the mica and paper are 9 and 6 respectively. Calculate: the i. capacitance and ii. electric field strength in each dielectric in kV/mm due to a pd of 10kV between the metal plates.

Solutions

Expert Solution


Related Solutions

Two large, thin, metal plates of 0.5mx0.5m face each other. They are spaced 2cm apart and...
Two large, thin, metal plates of 0.5mx0.5m face each other. They are spaced 2cm apart and have equal but opposite charges on their inner surfaces. a) if the magnitude E of the electric field between the plates is 700 N/C what is the magnitude of the charge on each plate? b) Integrate E across the gap between the plates to find the potential difference V and hence the capacitance C. c) Recalculate C using the parallel plate capacitator formula instead....
A capacitor consists of two closely spaced metal conductors of large area, separated by a thin...
A capacitor consists of two closely spaced metal conductors of large area, separated by a thin insulating foil. It has an electrical capacity of 3400.0 μF and is charged to a potential difference of 72.0 V. 1. Calculate the amount of energy stored in the capacitor. 2. Calculate the charge on this capacitor when the electrical energy stored in the capacitor is 11.15 J. 3. If the two plates of the capacitor have their separation increased by a factor of...
A plane parallel-plate capacitor consists of two identical circular metal plates, each of radius 2.50 cm....
A plane parallel-plate capacitor consists of two identical circular metal plates, each of radius 2.50 cm. the plates separated by 1.00 micrometer. The charge on the capacitor is 3.50 nC. Values of standard constant can be found in your notes or the textbook. For these questions, enter only the numerical values. Do not enter the units, which are already given after the blank. Note that the data is given to 3 significant figures. You MUST enter your answers also to...
​An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 2.20 mm. A 23.0-V potential difference is applied to these plates. (a) Calculate the electric field between the plates. kV/m (b) Calculate the surface charge density. nc/m2 (c) Calculate the capacitance. pF (d) Calculate the charge on each plate. pC
A dielectric-filled capacitor consists of two parallel plates, each with an area  A = 15.0 cm2 ,...
A dielectric-filled capacitor consists of two parallel plates, each with an area  A = 15.0 cm2 , seperated by a distance of d = 10.0 mm and dielectric constant k = 4.00. A potential difference  V= 10.0 V  is applied to these plates . Throughout the problem, use ϵ0 = 8.85×10−12 C2/N⋅m2 Part A) Calculate the energy U1of the dielectric-filled capacitor.(J) Part B) The capacitor remains connected to the battery. Calculate the energy U2 of the capacitor at the moment when the capacitor...
Two large, flat metal plates are parallel to each other, a distance d apart. A charge...
Two large, flat metal plates are parallel to each other, a distance d apart. A charge of Q is placed on them and then they are electrically isolated. As a result, at the midpoint between the two plates the electric field has magnitude E. If the separation of the plates is then reduced to d/2 what is the magnitude of the electric field at the midpoint? A) 2E B) E/2 C) 0 D) 4E E) E
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated...
An air-filled capacitor consists of two parallel plates, each with an area of 7.60 cm2, separated by a distance of 2.00 mm. (a) If a 16.0 V potential difference is applied to these plates, calculate the electric field between the plates. kv/m (b) What is the surface charge density? nC/m2 (c) What is the capacitance? pF (d) Find the charge on each plate. pC
A capacitor consists of two 4.3-cm-diameter circular plates separated by 1.0 mm. The plates are charged...
A capacitor consists of two 4.3-cm-diameter circular plates separated by 1.0 mm. The plates are charged to 130 V , then the battery is removed. A) How much energy is stored in the capacitor? U_C = __J How much work must be done to pull the plates apart to where the distance between them is 2.0 mm? W = _J
Two horizontal metal plates, each 10.0 cm square, are aligned 1.00 cm apart with one above...
Two horizontal metal plates, each 10.0 cm square, are aligned 1.00 cm apart with one above the other. They are given equal-magnitude charges of opposite sign so that a uniform downward electric field of 1.96 103 N/C exists in the region between them. A particle of mass 2.00 10-16 kg and with a positive charge of 1.09 10-6 C leaves the center of the bottom negative plate with an initial speed of 1.04 105 m/s at an angle of 37.0°...
A capacitor made of conductive plates (made of metal) is aligned as shown. The plates have...
A capacitor made of conductive plates (made of metal) is aligned as shown. The plates have a surface area of 2 x 10-1 m2 and are 0.01 m apart from each other. The capacitor is first connected to the voltage source until it is fully charged and produces a potential difference of V0 = 3 kV and then released from the voltage source earlier. If between the two capacitor plates the plastic dielectric material is inserted and fully filling the...
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT