The length of a certain wire is doubled while its radius is kept constant. What is the new resistance of this wire? a It stays the same. b It is 2 times as large. c It is 3 times as large. d It is 4 times as large. e It is ½ as large.

Q: You are working at a company that manufactures electrical wire. Gold is the most ductile of all…

A: resistance, R=ρlA where, ρ=resistivity of gold=2.44×10-8Ωm l=length of the wire A=surface area of…

Q: 20. A conductor of cross-sectional area A, length l, and resistivity ρ has resistance R. What is the…

A:

Q: An insulated extension cord is made of a 1.5-meter long copper rod with a diameter of 2.3…

A: Given: The length of the wire is 1.5 m. The diameter is 2.3 mm.

Q: order to triple its resistance, by how much would you have to increase the temperature of a piece of…

A:

Q: 2. An aluminum (p=2.7x10-2m) wire has a cross-sectional area of 5.1x107 m?. A. If the wire is…

A: (A) Let A be the cross-sectional area of the aluminium wire. Write the expression for the circular…

Q: #1. Two wires, A and B, are made of the same metal and have equal length, but the resistance of wire…

A:

Q: Three resistors of resistances R1 = 14.8 Ω, R2 = 70.3 Ω, and R3 = 39.7 Ω are connected in parallel.…

A:

Q: Six resistors are connected to a battery. It is known that R1=5 ohm, R2= 25 ohm, R3= 80 ohm, R4= 10…

A: Hello. Since your question has multiple sub-parts, we will solve the first three (a, b, and c)…

Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

A: Given: Diameter of conductor A = 1.5mm Inner Diameter of conductor B = 2.7mm Outer Diameter of…

Q: A wire of initial length L0 and radius r0 has a measured resistance of 1.0 Ω. The wire is drawn…

A: Given : Initial length of wire = Lo Initial radius = ro Measured resistance, Ro = 1.0 Ω New radius,…

Q: A wire of length L and cross-sectional area A has a resistivity p. Which of the following formulas…

A: Given : Length of a wire = L Cross-sectional area = A Resistivity = ρ

Q: 1.There are two wires, one is made of copper and the other one is silver. These two wires of the…

A: We are allowed to give the explanation of first question only which is given below.  Please repost…

Q: 1. How does resistance change if the length of the wire is increased? a. no change b. decreased c.…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: The circuit below has four resistors and a 10 V battery. R1=200 10V R2=300 R3=500 R4=200 a) What is…

A: According to the Ohm's law , the voltage drop across the circuit is defined as the product of the…

Q: 1. You have 4 iron (p=9.7x10-2m) cylinders. The resistance is measured between the 2 flat ends. The…

A:

Q: A total resistance of 3.07 Q is to be produced by connecting an unknown resistance to a 12.20 Q…

A:

Q: C1. There are two wires, one is made of copper and the other one is silver. These two wires of the…

A: 1. The resistance of the wire always depend on the length, cross sectional area and the resistivity…

Q: A wire of initial length L0 and radius r0 has a measured resistance of 2.0 Ω. The wire is drawn…

A: Given: The intial length is Lo. The radius of the wire is ro. The final radius is 0.27ro. The…

Q: Two wires of the same material and with the same length have different diameters. Wire A has twice…

A:

Q: The length of a certain wire is kept same while its radius is doubled. What is the new resistance of…

A: Let l be the length of original wire, r be its original radius and R be its resistance. Let the…

Q: A. Three resistors are connected as shown below. R1 = 4.0 Ω,  R2 = 3.0 Ω, and R3 = 6.0 Ω The voltage…

A: According to guidelines we need to solve only first three sub-part kindly repost other parts in the…

Q: A total resistance of 3.27 Q is to be produced by connecting an unknown resistance to a 12.06 a…

A:

Q: What should be the diameter of an aluminum wire for its resistance to be equal to that of a copper…

A: Resistance of both square is equal Length of both is equal let length of wire be l Resistivity of…

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…

A:

Q: Suppose you wish to fabricate a uniform wire from 1.20 g of copper. The wire is to have a resistance…

A: The density of an object is its mass per unit volume .It can be written as…

Q: You’ve made the finals of the Science Olympics!  As one of your tasks, you’re given 1.0 g of copper…

A:

Q: A wire of length L and cross-sectional area A has a resistivity p. Which of the following formulas…

A:

Q: 25.69      A 1.50-m cylinder of radius 1.10 cm is made of a complicated mixture of materials. Its…

A:

Q: 3.0 length of copper wire (ρ = 1. 78 x 10−8Ωm) at 20oC has a cross section area of 4mm2. What is the…

A: We know that Resistance  R= PLA

Q: In the circuit shown, the current I1 = 3.00 A and the values of ε for the ideal battery and R are…

A: (a) Apply KVL in the right loop and plug the knowns to determine the current I2.

Q: 12.0 N 4.00 N 5.00 2 6.00 N 8.00 N ) What is the equivalent resistance (in 0) of the entire…

A: Consider a circuit having equivalent resistance between points a & b as (Req) in ohm…

Q: Red wire has area of cross section = 10 square meter while Green wire has a cross section = 15…

A: Given data:  Area of cross section of red wire = 10 m2 Area of cross section of green wire = 15 m2…

Q: A metal wire of resistance R is cut into three equal pieces that are then placed together side to…

A: The initial resistance of the metal wire can be expressed as R=ρLA Here, L is the length, A is the…

Q: 2. A cylindrical metal rod is 1.90 m long and 5.50 mm in diameter. The resistance between its two…

A:

Q: A total resistance of 3.22 Q is to be produced by connecting an unknown resistance to a 12.04 Q…

A: Given Information:- Total resistance Rt=3.22 Ω One resistance is R=12.04 Ω   Required:- Magnitude of…

Q: A total resistance of 3.16 Q is to be produced by connecting an unknown resistance to a 12.13 2…

A:

Q: Two aluminum wires have the same resistance. If one has twice the length of the other. What is the…

A: Given: The resistance of both wires is the same. R1=R2 The length of the second wire is twice the…

Q: 9. What does it mean If material has a positive temperature coefficient? A. the resistance increases…

A: #9 The relation between temperature coefficient, resistance, and temperature difference is given by,…

Q: Wire B has twice the length and twice the radius of wire A. Both wires are made from the same…

A: Given data The length of wire B is lB = 2lA The radius of wire B is: rB= 2rA Wire A and wire B is of…

Q: 1. Find the equivalent resistance between points a and b in Figure P18.45. 2.4 N 5.1 0 1.8 02 3.5 N…

A: As the resistors 3.5 Ω and 5.1 Ω are connected in series, then the equivalent resistance is given…

Q: aluminium wires A and B are the same length, but have different cross-sectional areas. Wire B has…

A: Since both wire is made of same material  (aluminium ) so their resistivity will be same.

Q: A wire of length L and cross-sectional area A is used in a circuit. The overall resistance of the…

A: Resistance of a wire is directly proportional to the length an inversely proportional to the area o…

Q: (a) Find the equivalent resistance between points a and b in the figure. (R = 14.0 Ω) (b) Calculate…

A: Resistance R = 14.0 Ω Potential Difference V = 58.0 V Concept - If any three resistors of resistance…

Q: Three wires of lengths 7m, 8m and 9m are made up of the same material and have the same area of…

A: According to the guidelines issued by the company we are supposed to answer only first question.…

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.