A wire of diameter 0.750 mm and length 45.0 m has a measured
resistance of 1.20 Ω. What is the resistivity of the
wire?
The resistance of a wire is defined as
where, L is the length of the wire. A is the cross section of the
wire. is the resistivity
of the wire. So, we get
And as we know for a circular section of diameter d, the cross
sectional area is given by
And so, the resistivity is
And given the values,
We get the resistivity as
A wire of diameter 0.750 mm and length 45.0 m has a measured resistance of 1.20...
Please answer this question: A wire of diameter 0.650 mm and length 40.0 m has a measured resistance of 1.40 Ω. What is the resistivity of the wire? Please answer correctly!!!! Thank you so much in advance! Safari File Edit View History Bookmarks Window Help 48% D, Mon 3:14:43 PM Q mm/s Need Help?Read It Submit Answer Save Progress Practice Another Version 5. +-/10 points SerCP11 17.4.P.016 My Notes+ A wire of diameter 0.650 mm and length 40.0 m has...
Consider a wire with resistivity of (1.20+A)x10-7 Ω m, a diameter of (1.50+B) mm, and a length of (15.0+C) m. Determine the resistance of the wire in ohms (Ω). Round your answer to three significant figures. a= 8 b = 2 c= 12
What is the resistance of a 61.1-m-long aluminum wire that has a diameter of 7.77 mm? The resistivity of aluminum is 2.83x 10-8 Ω . m. resistance:
Calculate the ratio of the resistance of 11.0 m of aluminum wire 2.5 mm in diameter, to 23.0 m of copper wire 1.9 mm in diameter. The resistivity of copper is 1.68×10−8Ω⋅m and the resistivity of aluminum is 2.65×10−8Ω⋅m. --------------------- A length of aluminum wire is connected to a precision 10.00-Vpower supply, and a current of 0.4132 A is precisely measured at 23.5 ∘C. The wire is placed in a new environment of unknown temperature where the measured current is...
A diameter of a silver wire is 9.2 mm and length of the wire is 2510 m . a) Find the resistance of the given silver wire? b) What is the voltage drop along its length when it carries 4.0 A? (Note:The resistivity of silver is 1.59 × 10-8 Ω-m).
Calculate the ratio of the resistance of 12.0 m of aluminum wire 2.4 mm in diameter, to 26.0 m of copper wire 1.8 mm in diameter. The resistivity of copper is 1.68× 10 −8 Ω⋅m and the resistivity of aluminum is 2.65× 10 −8 Ω⋅m .
What is the resistance of a 2.9-m length of copper wire 1.8 mm in diameter? The resistivity of copper is 1.68×10−8Ω⋅m.
What is the resistance of a 5.9-m length of copper wire 1.2 mm in diameter? The resistivity of copper is 1.68×10−8Ω⋅m.
What is the resistance of a 4.9-m length of copper wire 1.9 mm in diameter? The resistivity of copper is 1.68×10−8Ω⋅m.
What is the resistance of a 5.9-m length of copper wire 1.1 mm in diameter? The resistivity of copper is 1.68×10−8Ω⋅m.