A wire has a length of 8.0 m and is made of copper which has a resistivity of 1.7 x 10-8 Ωm.  This wire has a diameter of .01 m.  What is the resistance of this wire

Q: A 14-gauge copper wire has a cross-section area of 2.081 mm². The resistivity of copper at 20…

A: The initial (20oC) resistance is, R1=ρLA=1.7×10-8 Ωm100 m2.081 mm210-6 m21 mm2=0.817 Ω

Q: Charges can move across the cell membrane, so it is not a perfect insulator; the cell membrane has a…

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Q: 1. Wire C and wire D are made from different materials and have length Lc = LD = 0.9 m. The…

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Q: Two wires are identical, except that one is aluminum and one is copper. The aluminum wire has a…

A: Resistance for a wire can be found from R=ρLA where ρ is the resistivity of material, L is length…

Q: Suppose you have a 22 m long piece of copper wire with a 2.268 mm diameter and a resistivity of 1.72…

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Q: Resistors v.B What is relationship between the resistances of objects A and B? RA = RB А: RA = 0.5 x…

A: The given values are, rA=RrB=2R

Q: 3.(0) A battery has an emf of 9.0 V and an internal resistance of 0.0400 Q. What is the terminal…

A: i) Given data: The emf of the battery, ε=9.0 V. The internal resistance of the battery, r=0.0400 Ω.…

Q: What is the resistance of a wire with a length of 43.4 m and a radius of 2.8 mm, made from a metal…

A: Given data: The length is L=43.4 m The radius is r=2.8 mm The resistivity is ρ=6.0×10-8 Ω.m The area…

Q: Problem 7: An extension cord has a resistivity of p = 7.5 × 10-8 2-m. The cord is made from copper…

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Q: The graph below represents the relationship between the resistance and the length of a wire of a…

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Q: Need help solving these problems!

A: Given:- 1a)current = o.7 A time = 1 min. Now, charge (q)= 42C

Q: A tungsten wire is 28m long and is used in a toaster at 120V. The resistivity of this material is…

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Q: Suppose that the resistance between the walls of a biological cell is 5.1 × 109 Ω. (a) What is the…

A: Required : (a) What is the current when the potential difference between the walls is 76 mV?  (b) If…

Q: A wire with resistivity 1.8 x 10-7 Ω m has a resistance of 0.45 Ω and a length of 2.0 m. What is the…

A: Given data: The given resistivity of wire is = 1.8×10-7 ohm-m The value of resistance is R = 0.45…

Q: A 1.3-m long copper wire (resistivity 1.68×10-8 Ω·m) has a resistance of 7 Ω. What is the diameter…

A: Given data:  Length (L) = 1.3 m Resistivity (ρ) = 1.68×10-8 Ω.m Resistance (R) = 7 Ω Required: The…

Q: The resistance of a uniform copper wire 50.0 meters long and 1.15 mm in diameter is 0.830 ohms at…

A: Given, Length of copper wire = 50 m Diameter = 1.15 mm Resistance = 0.830 ohms at 20 degrees

Q: What is the resistance of a 3.4-mm length of copper wire 1.3 mm in diameter? The resistivity of…

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Q: An insulated extension cord is made of a 1.5 m long copper rod with a diameter of 2.3 mm. What is…

A: According to question we need to find --- What is the resistance of the extension cord? If an…

Q: A bar (length = 80 cm) with a cross section of (1.5 mm × × 2.0 mm) has a resistance of 0.20 Ω Ω .…

A: The length of the bar is l = 80 cm. The cross sectional area of the bar is A = (1.5mm x 2.0 mm) = 3…

Q: 3.0 A battery has an emf of 12 V and an internal resistance of 0.0500 2. What is the terminal…

A: Given : Emf (E) = 12 V Resistance (R) = 0.0500 Ω Current (I) = 8 A

Q: An aluminum wire with a circular cross-section has a mass of 1.45 g and a resistance of 0.630 Ω. At…

A: Resistance of wire of area of cross section A and length l is given as R= ρl/A.

Q: A wire with a length of 3.0 m and a radius of 0.5 mm has a resistance of 0.50 Q2. What is the…

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Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: (a)  Using the expression for resistance, R=ρCuLAL=RρCuAL=0.913 Ω1.72×10-8 ΩmAA=L5.308×107 m-1

Q: What is the resistance of (a) A 1.8-mm-long gold wire that is 0.10 mm in diameter? Express your…

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Q: An iron wire has a diameter 3.65 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: Formula of resistance is as follows: R=ρLA…

Q: Two wires with the same resistance have the same diameter but different lengths. If wire 1 has…

A: Given Information:- Resistance and diameter of the two wires are same. Resistivity of copper is…

Q: As part of a class project you are given 0.900 g of Nichrome and asked to fabricate a wire with…

A: Mass of wire = 0.9 g Percentage of nichrome used = 95%Therefore, mass of nichrome used = 0.95×0.90…

Q: hat is the electrical resistance of a copper wire that has a radius of 0.80 mm and a length of 2.0…

A: Given: The radius of the wire is 0.8 mm. The length of the wire is 2 m. The resistivity of the wire…

Q: A metal has a resistivity of 1.26 x 10-8 0 m. What will the resistance of the following wires made…

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Q: An aluminum rod with a square cross-section is 2.6 m long and 5.3 mm on edge. (a) What is the…

A: Given data: Length of aluminum rod is, La=2.6 m. Edge length of aluminum rod is, a=5.3 mm=5.3×10-3…

Q: A copper wire has a diameter 6.5 mm and resistivity 1.6 x 10^-8 Om. What will be the length of this…

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Q: A gold wire with a circular cross-section has a mass of 1.30 g and a resistance of 0.770 Ω. At 20°C,…

A: Given data: Mass of the gold wire is, m= 1.30 g The resistance of the gold wire is, R = 0.770 Ω The…

Q: A rod (length = 40 cm) with a rectangular cross section (1.5 mm X2.0 mm) has a resistance of 0.20…

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Q: 4. Wire C and wire D are made from different materials and have length L = Lp=1.0 m (Figure 4). The…

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Q: A 30.0 m long extension cord is made from two #19 gauge copper wires. (a) What is the resistance of…

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Q: The resistivity of a 100 m long copper wire is 1.72 x 10-80m. If the cross sectional area of the…

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Q: A wire with a length of 2.0 m and a diameter of 1.0 mm has a resistance of 0.45 0. What is the…

A: Length of wire (L) = 2.0 m  Diameter of wire (D) = 1.0 mm  Resistance of wire (R) = 0.450 ohm

Q: (a) Of what material is a wire made, if it is 30.0 m long with a 0.130 mm diameter and has a…

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Q: A wire of diameter 0.750 mm and length 20.0 m has a measured resistance of 1.40 2. What is the…

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Q: ms on resistance and resistivity 1. The resistance of a 2m length of cable is 2.5Q. Determine (a)…

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Q: Most of the resistance of the human body comes from the skin, as the interior of the body contains…

A: Electrical conductors are materials that allow electricity to flow readily through them.…

Q: A conductor of cross-sectional area A, length l, and resistivity ρ has resistance R. What is the new…

A: Given value--- A conductor of cross-sectional area A, length l, and resistivity ρ has resistance R.…

Q: As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with…

A: Given :  Mass of nichrome, m = 0.9g = 0.9 x 10-3 kg (but only 95% is used) = 0.9 x 10-3 x (95/100) =…

Q: A thermistor is a device whose resistance varies with temperature. At 20∘C∘C a thermistor's…

A: Potential difference of the pattery (V) = 1.2 volts Resistance of the thermistor at 20oC (R) = 10…

Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: Given : Mass of copper given = 0.9 g Copper used =95% =95100×0.9 = 0.855 g  =0.855×10-3 kg…

Q: An aluminum rod with a square cross section is 1.8 m long and 6.2 mm on edge. (a) What is the…

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Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.