A wire of length 3 m and area of cross-section 1.7 × 10-6 m2 has a resistance 3 × 10-2 ohm.
a. What is the formula for resistivity of the wire and what is the unit of it
b. Calculate the resistivity of the wire
please answer it correct and also add the procedure.
Answers
Answered by
2
Answer:
a. Resistivity of the wire is given by
ρ = R A /L
And It unit is Ohm-m
b. In this case
L=3 m
A = 1.7 × 10 − 6 m2
R = 3 × 10 − 2 ohm
So
ρ = 1.7 × 10 − 8 Ohm-m
Answered by
1
Answer:
a. Resistivity of the wire is given by
ρ
=
R
A
L
And It unit is Ohm-m
b. In this case
L=3 m
A
=
1.7
×
10
−
6
m2
R
=
3
×
10
−
2
ohm
So
ρ
=
1.7
×
10
−
8
Ohm-m
Explanation:
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