A nerve fiber may be approximated as a cylinder with a diameter 0.01 mm and length 200 mm. What is the resistance of this nerve fiber it its resistivity is 2.5 ohm-meter.

Q: A copper wire has a diameter 0.9 mm and resistivity 1.6 x 10-8 Qm. What will be the length of this…

A: Given,Diameter of the copper wire, d = 0.9 mmResistance of the wire, R = 15Ω resistivity of copper…

Q: What is the resistance (in ) of a 21.5 m long piece of 27 gauge copper wire having a 0.361 mm…

A: Given data:  A piece of 27 gauge copper wire  Length (L) = 21.5 m Diameter (d) = 0.361 mm =…

Q: A coaxial cable consists of an inner conductor with radius ri = 0.25 cm and an outer radius of ro =…

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Q: A copper wire has a diameter 9.7 mm and resistivity 1.6 x 10-8 Om. What will be the length of this…

A: solution as

Q: problem/s: 1. Solve for the resistance of a conductor given a resistivity of 15.3 0-m, length of 6…

A: Answer:-  (1) Given  Resistivity (p) = 15.3 ohm- m  Length of a conductor (l) = 6 m  Area of cross…

Q: A potential difference of 12 V is found to produce a currentof 0.40 A in a 3.2 - m length of wire…

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Q: What should be the length and cross-sectional area of a wire for it to have a resistance of 82 from…

A: Solution

Q: The resistance of a copper wire and an aluminum wire are equal. What is the ratio of the diameters…

A: Given data:  Rcu = RAl Have the same length Required: The ratio of diameters of the copper to…

Q: 1 0.500-meter length of wire with a cross-sectional area of 3.14 x 106 meters squared is found to…

A: Given value--- length = 0.5 m. Area = 3.14 × 10-6 m2 . Resistance = 2.53 × 10-3 ohm. We have to…

Q: The storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.42,…

A: Emf of battery, E = 12 V Internal resistance of battery, r = 0.4Let I be the maximum current drawn…

Q: Two carbon cylinders have radii 2r and r and the first has length 2L, while the second has length L.…

A: Given data: Radius of first cylinder (r1) = 2r  Radius of first cylinder (r2) = r Length of first…

Q: What is the equivalent resistance between points A and B when R= 78.7 Q?

A: The resistance of '5R' on the top and the resistance of 'R' on the left hand side are in series. So,…

Q: What is the resistance of a 20.0-m-long piece of 12- gauge copper wire having a 2.05 mm diameter?…

A: Given data: Length (L) = 20.0 m Diameter (D) = 2.05 mm = 2.05×10-3 m Resistivity (ρ) = 1.68×10-8 Ω…

Q: The Nichrome unit (p=660) in a toaster has a resistance of 24 ohms. What is the resistance of a…

A: resistance of nichrome unit (R) = 24 ohm Let the cross sectional area of nichrome unit = A Let the…

Q: A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10-8 Ω m. What will be the length of this…

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Q: A metallic wire is stretched from original length of 2 m to 6 m. If the original cross-sectional…

A: When a metallic wire is stretched, its length increases, cross sectional area decreases and volume…

Q: When a potential difference of 12 V is applied to a wire 6.9 mlong and 0.33 mm in diameter, the…

A: from Ohm's law  we know that  ∆V = iR where i is current and R is resistance

Q: what is the resistance of a 3 km long iron wire, given that its diameter is 1 cm

A: Given data The length of the iron wire is given as L = 3 km. The diameter of the wire is given as d…

Q: If the resistance of a conductor is 4000 Ω, the length is 8 m and the resistivity value is 2000,…

A: solution as

Q: resistance of a 25 cm

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Q: A copper wire has a diameter 1.15 mm and resistivity 1.6 x 10-8 Qm. What will be the length of this…

A: Given data:  Wire diameter (d) = 1.15 mm = 1.15×10-3 m Resistivity (ρ) = 1.6×10-8 Ωm Resistance (R)…

Q: An iron wire has a diameter 7.25 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: Answer             (a)  4251.534 m             (b) 2.5 ohm

Q: What is the resistance of a wire made of a material with a resistivity of 3.2 x 10 -8 if its length…

A:

Q: A0. 20 m long metal rod has a radius of 1.0 cm and a resistance of 3.2 x 10* a. What is the…

A: Given data: Length (L) = 0.20 m Radius (r) = 1.0 cm = 0.01 m Resistance (R) = 3.2 × 10-5 Ω Required:…

Q: ISuppose that you wish to fabricate a uniform wire out of 4.56 g of copper. If the wire is to have a…

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Q: What is the resistance of a 29-m-long piece of 18-gauge copper wire having a 1.024-mm diameter? Hint…

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Q: The resistance of a copper wire is originally 16 Q. What is the resistance of the same copper wire…

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Q: What is the resistance of a silver wire 15 m long at 20 degrees Celsius and whose diameter is…

A: Given that, Length = 15 m Diameter = 0.00085 m Resistivity = 1.6×10-8 Ωm

Q: You apply a potential difference of 3.4 V between the ends of a wire that is 3 m in length and 0.5…

A: Ohm's law relates the Voltage across the circuit and the current flowing through the circuit. The…

Q: The Nichrome unit (ρ = 660) in a toaster has a resistance of 24 ohms. What is the resistance of a…

A: Given resistivity of Nichrome wire = ρn = 660 Ω.m resistance of Nichrome wire= Rn = 24 Ω length of…

Q: A 0.6 m long wire is stretched to 1.7 m long. What is the percentage change in its resistance? The…

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Q: What is the resistance (in units of Q) of a wire made of a material with a resistivity of 3.2 x…

A: Given- Resistivity ρ=3.2×10-8Ω.m Length L=49.1 m Diameter d=0.50 mm=0.50×10-3m Radius…

Q: A piece of material is tested and, at 25oC, it has a resistance of 153Ω. The thermal coefficient of…

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Q: What is the resistance (in units of N) of a wire made of a material with a resistivity of 3.2 × 10-8…

A:

Q: The tungsten filament of a lightbulb has a resistance of 0.07 Ω. Ifthe filament is 27 cm long, what…

A: resistance, R = 0.07 Ω length, L =  27 cm = 0.27 m

Q: A wire of diameter 0.650 mm and length 60.0 m has a measured resistance of 2.40 Ω. What is the…

A: Resistivity of the wire ρ=RAl=Rlπd24

Q: Assuming a constant temperature coefficient of resistivity, what is the maximum percent decrease in…

A: The expression for resistance,

Q: consider a portable electric blanket that runs on a 1,5 V battery. ıf you use copper wire with a 1…

A: Given data: Battery Voltage (V) = 15 V Wire Diameter (D) = 1 mm = 1×10-3 m Power (P) = 10 W…

Q: What would be the new resistance of a silver wire if the wire passes 500 m? (R = 1.7 Ω) at 30 m?

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Q: A conductor has a conductance of 155 mS. What is its resistance?

A: Relation between conductance and resistance is given asR=1GHereR=ResistanceΩG=conductanceS

Q: The resistivity of a silver wire with a radius of 5.04 x 10-4 m is 1.59 x 10-8 2 · m. If the length…

A:

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 108…

A: Given Resistivity=3.2×10^-8 onm meter Length=71.5 Diameter=.5mm

Q: A wire of radius R and length L has a resistance of 14 Q. What is the resistance of a wire made from…

A:

Q: What is the resistance of a copper rod with resistivity of 1.78 x 10-80m, diameter of 10mm, and a…

A: Answer: Given data, Resistivity of copper (p)=1.78×10-8 ohm- m Diameter of rod(d)=10 mm=10×10-3 m…

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.