2) A charged capacitor is given below. The capacitor is made from two sheets with area 3.2 m² separated by a distance of 1.25x103 m and initially empty. A Charge of mass 7.5x10€ kg and charge +82 µC is placed at location "A". When it reaches location "B" it is moving with a speed of 25 m/s. 1.25x103 m 6.4x104 m A B TABLE 17-3 a. Determine the voltage difference between points "A" Dielectric Constants (at 20°C) and "B" b. If the distance between points "A" and "B" is 6.4x10* Dielectric Dielectric strength (V/m) constant Material m. determines the size of the electric field inside the Vacuum 1.0000 capacitor. 3х 10 10 x 10 Air (1 atm) 1.0006 c. What is the electric field at point “C"? (No Paraffin 2.2 Polystyrene 2.6 24 x 10 calculations required!) Vinul (nlactic) 50 Y 100 %3D

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Chapter8: Capacitance
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Problem 48P: A parallel-plate capacitor is made of two square plates 25 cm on a side and 1.0 mm apart. The...
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2) A charged capacitor is given below. The capacitor is made from two sheets with area 3.2 m²
separated by a distance of 1.25x103 m and initially empty. A Charge of mass 7.5x106 kg and
charge +82 µC is placed at location "A". When it reaches location "B" it is moving with a speed of
25 m/s.
1.25x103 m
6.4x10-4 m
A
B
a. Determine the voltage difference between points "A"
TABLE 17-3
Dielectric Constants (at 20°C)
and "B"
Dielectric Dielectric
strength
(V/m)
b. If the distance between points "A" and "B" is 6.4x10*
constant
Material
m. determines the size of the electric field inside the
Vacuum
1.0000
capacitor.
Air (1 atm)
1.0006
3х 10
c. What is the electric field at point "C"? (No
Paraffin
2.2
10 x 10
Polystyrene
2.6
24 х 10°
calculations required!)
d. Calculate the capacitance of the capacitor.
e. Using the electric field calculated in part "b",
Vinyl (plastic) 2–4
50 x 10
Раper
3.7
15 x 10
Quartz
4.3
8 x 10
Oil
4
12 x 10
determine the charge stored on the capacitor.
Glass, Pyrex
5
14 x 10
f. Determine the voltage drop across the capacitor.
Rubber,
neoprene
6.7
12 x 10
An unknown dielectric is placed inside the capacitor while
6-8
5 x 10°
Porcelain
Mica
7
150 x 10°
hooked up to the same battery/voltage source. The new
Water (liquid) 80
charge stored on the capacitor is 8.5 µC.
Strontium
8 x 10°
titanate
300
g. What dielectric was placed in the capacitor?
+
Transcribed Image Text:2) A charged capacitor is given below. The capacitor is made from two sheets with area 3.2 m² separated by a distance of 1.25x103 m and initially empty. A Charge of mass 7.5x106 kg and charge +82 µC is placed at location "A". When it reaches location "B" it is moving with a speed of 25 m/s. 1.25x103 m 6.4x10-4 m A B a. Determine the voltage difference between points "A" TABLE 17-3 Dielectric Constants (at 20°C) and "B" Dielectric Dielectric strength (V/m) b. If the distance between points "A" and "B" is 6.4x10* constant Material m. determines the size of the electric field inside the Vacuum 1.0000 capacitor. Air (1 atm) 1.0006 3х 10 c. What is the electric field at point "C"? (No Paraffin 2.2 10 x 10 Polystyrene 2.6 24 х 10° calculations required!) d. Calculate the capacitance of the capacitor. e. Using the electric field calculated in part "b", Vinyl (plastic) 2–4 50 x 10 Раper 3.7 15 x 10 Quartz 4.3 8 x 10 Oil 4 12 x 10 determine the charge stored on the capacitor. Glass, Pyrex 5 14 x 10 f. Determine the voltage drop across the capacitor. Rubber, neoprene 6.7 12 x 10 An unknown dielectric is placed inside the capacitor while 6-8 5 x 10° Porcelain Mica 7 150 x 10° hooked up to the same battery/voltage source. The new Water (liquid) 80 charge stored on the capacitor is 8.5 µC. Strontium 8 x 10° titanate 300 g. What dielectric was placed in the capacitor? +
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