A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when connected to a 3.0 V source?

Physics for Scientists and Engineers: Foundations and Connections
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ISBN:9781133939146
Author:Katz, Debora M.
Publisher:Katz, Debora M.
Chapter28: Current And Resistance
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A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw
when connected to a 3.0 V source?
Transcribed Image Text:A copper wire is 2.50 m long and has a diameter of 2.5 mm. How much current will it draw when connected to a 3.0 V source?
-
Ohm's Law
V
R = p-
A^2
А
V
C =
V
C = E
d
R =
I
Permittivity of Common Dielectrics
L^2
R = P:
Material
.)
Air or vacuum
0.885
Glass (ordinary)
7
Glass (pyrex)
4.7
Mica
4.8
Mylar
2.7
1
I a
Paraffin
2
R = p
А
Polyethylene
1.99
Porcelain
6.2
Teflon
1.9
Water @ C
70.8
Resistivity Coefficients at C
Resistivity Coefficients at C
.m)
Capacitor in Parallel
Material
Material
.m)
Silver
1.59
Carbon
3.5x
Cr = G + C2 + C3
Qr = Q1 + Q2 + Q3
|CT
Сopper
1.68
Germanium
0.6
Aluminum
2.65
Silicon
2300
Tungsten
5.6
Glass
Iron
9.71
Lucite
Vr = V = V2 = V3
Platinum
10.6
Quartz
Manganin
48.2
Rubber
Lead
22
Teflon
Mercury
98
Wood
Nichrome
100
Capacitor in Series
Resistors in Parallel
Resistors in Series
Rr = R1 +R2 + Rg3
L = 4 = ½ = I3
1
1
1
1
1
+
1
+
1
1
+
Cr G'G' C
Qr = Q1 = Q2 = Q3
+
Rr R' R2 R3
T = 4 +12 +13
Vr = V = V2 = V3
||
%3D
Vr = V +V½ +V3
Vr = V¼ + V½ + V3
Transcribed Image Text:- Ohm's Law V R = p- A^2 А V C = V C = E d R = I Permittivity of Common Dielectrics L^2 R = P: Material .) Air or vacuum 0.885 Glass (ordinary) 7 Glass (pyrex) 4.7 Mica 4.8 Mylar 2.7 1 I a Paraffin 2 R = p А Polyethylene 1.99 Porcelain 6.2 Teflon 1.9 Water @ C 70.8 Resistivity Coefficients at C Resistivity Coefficients at C .m) Capacitor in Parallel Material Material .m) Silver 1.59 Carbon 3.5x Cr = G + C2 + C3 Qr = Q1 + Q2 + Q3 |CT Сopper 1.68 Germanium 0.6 Aluminum 2.65 Silicon 2300 Tungsten 5.6 Glass Iron 9.71 Lucite Vr = V = V2 = V3 Platinum 10.6 Quartz Manganin 48.2 Rubber Lead 22 Teflon Mercury 98 Wood Nichrome 100 Capacitor in Series Resistors in Parallel Resistors in Series Rr = R1 +R2 + Rg3 L = 4 = ½ = I3 1 1 1 1 1 + 1 + 1 1 + Cr G'G' C Qr = Q1 = Q2 = Q3 + Rr R' R2 R3 T = 4 +12 +13 Vr = V = V2 = V3 || %3D Vr = V +V½ +V3 Vr = V¼ + V½ + V3
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