Suppose you wish to fabricate a uniform wire from 1.20 g of copper. The wire is to have a resistance of R = 0.680 Ω and all the copper is to be used (?=1.70 x 10-8 Ω ?, density = 8.92 x 103 kg/m3). (a) What must be the length of this wire? (b) What must be the diameter of this wire?
Suppose you wish to fabricate a uniform wire from 1.20 g of
copper. The wire is to have a resistance of R = 0.680 Ω and all the
copper is to be used (?=1.70 x 10-8
Ω ?, density = 8.92 x 103
kg/m3).
(a) What must be the length of this wire?
(b) What must be the diameter of this wire?
Please use equation from sheet
![AV = -Ed
C = € °
å
R = PĀ
Δν
kelQ1||Q2l
r2
V = E, keqi
ri
F
E
Iql
v2
P = 1²R =
= IV
R
R = Ro[1+a(T – To)]
1
+
R1
1
+...
R3
AV = IR
Reg = R1 + R2 + R3+...
Req
kelQl
E =
r2
Areaπr2|
V = !
Hol
B =
2ar
F
Holil2
mv
r =
qB
F = qvB sin0
- %=
L
2nd
1
1
+
C1
1
Ceg = C1 + C2 + ….
Ceq
||](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1330645c-70c6-4cdc-9d97-c0134202313b%2F7a47c05d-63ed-4c29-8945-cc90e1935c81%2Fyh4jhh_processed.png&w=3840&q=75)
The density of an object is its mass per unit volume .It can be written as
.............................(1)
The Copper wire is having the shape of a cylinder.Its volume can be calculated as
...................(2)
(Where area is )
Resistance of a conductor is a measure of objection to the current flow through it . Its value for a given conductor is calculated as ...................(3),where is the resistivity of the material,l is the length and A is the area of the conductor.
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