3.A parallel plate capacitor with an air gap has a capacitance of 70µF when the plates...
3.A parallel plate capacitor with an air gap has a capacitance of 70µF when the plates are 1.4mm apart. If it stores 0.1mC on each of the plates, what is the potential difference between the plates? What is the electric field between the plates?
4.For the capacitor in the previous problem, the air gap is replaced with water (k = 80), but the charge on the plates is kept the same. What is the electric potential difference now? What is the electric field now?
5. The capacitor in problem 3 again has its air gap replaced with water, but now the electric potential is held constant instead of the charge. What is the new amount of charge stored on the plates of the capacitor? What is the electric field between the plates?
Homework Answers
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3.A parallel plate capacitor with an air gap has a capacitance
of 70µF when the plates...
A parallel-plate air capacitor has a capacitance of 300 pF and a charge of magnitude 0.150...
A parallel-plate air capacitor has a capacitance of 300 pF and a charge of magnitude 0.150 μC on each plate. The plates are 0.500 mm apart. A. What is the potential difference between the plates? Answer: V=500V B. What is the area of each plate? C. What is the electric-field magnitude between the plates? D. What is the surface charge density on each plate?
A parallel-plate capacitor has capacitance C0 = 8.30 pF when there is air between the plates....
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A parallel-plate capacitor has capacitance Co = 8.30 pF when there is air between the plates....
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A parallel-plate capacitor has capacitance C0 = 7.00 pF when there is air between the plates. The separation between the plates is 1.10 mm.
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A parallel plate capacitor is made of plates of area 0.05 m? each. The plates are...
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A parallel-plate capacitor (Homework #2) A parallel-plate capacitor is made by a pair of plates with area A and separation d. At first, the plates are charged up to +Q and -O respectively, and then a battery is disconnected. Express all the answers for a) through f) only by Q, d, A and 5 +Q 2d -Q Area A a) What is the electric field E inside of the capacitor? b) What is the potential difference V between the plates?...
A parallel-plate air capacitor with a capacitance of 244 pF has a charge of magnitude 0.137...
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A parallel-plate capacitor has capacitance 7.90 pF when there is air between the plates. The separation...
A parallel-plate capacitor has capacitance 7.90 pF when there is air between the plates. The separation between the plates is 1.60 Part A What is the maximum magnitude of charge that can be placed on each plate if the electric field in the region between the plates is not to exceed 3.00x104 V/m? Express your answer with the appropriate units. HA Value Units
A parallel-plate capacitor has capacitance Co = 8.30 pF when there is air between the plates. The separation between the plates is 1.60 mm Review Constants What is the maximum magnitude of charge that can be placed on each plate if the electric field in the region between the plates is not to exceed 3.00x104 V/m ? Express your answer with the appropriate units. Part B A dielectric with K = 3.10 is inserted between the plates of the capacitor,...
A parallel plate capacitor is made of plates of area 0.05 m? each. The plates are separated by a distance of 0.200 mm. Initially, the space between the plates is filled with air. (a) What is the capacitance of this air-filled capacitor? (b) If the electric field inside the capacitor exceeds 3.00 x 106 V/m, the air undergoes electrical break- down. (This maximum field is known as the dielectric strength of air.) From this, calculate the maxi- mum voltage (potential...
Capacitor calculation a) Calculate the capacitance of a parallel-plate capacitor whose plates are made of two different sizes. One plate has a radius of 10 cm and the other plate has 12 cm and is separated by 0.75 mm air gap. b) What is the charge on each plate if a 12-V battery is connected across the two plates? c) What is the electric field between the plates? d) Estimate the area of the plates needed to achieve a capacitance...
A parallel-plate capacitor (Homework #2) A parallel-plate capacitor is made by a pair of plates with area A and separation d. At first, the plates are charged up to +Q and -O respectively, and then a battery is disconnected. Express all the answers for a) through f) only by Q, d, A and 5 +Q 2d -Q Area A a) What is the electric field E inside of the capacitor? b) What is the potential difference V between the plates?...
A parallel-plate air capacitor with a capacitance of 244 pF has a charge of magnitude 0.137 mu C on each plate. The plates have a separation of 0.265 mm. What is the potential difference between the plates? What is the area of each plate? Use 8.85 times 10^-12 F/m for the permittivity of free space. What is the electric field magnitude between the plates? What is the surface-charge density on each plate?
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