An iron wire has a diameter 6.4 mm and resistivity 9.71x 10-8 Qm. What will be the length of this wire to make a resistance of 200. What will be the new resistance, if the radius is doubled? (a) Length of the wire (in m) = (b) Resistance of the wire (in )N =

An iron wire has a diameter 6.4 mm and resistivity 9.71x 10-8 Qm. What will be the length of this wire to make a resistance of 200. What will be the new resistance, if the radius is doubled? (a) Length of the wire (in m) = (b) Resistance of the wire (in )N =

Inquiry into Physics

8th Edition

ISBN:9781337515863

Author:Ostdiek

Publisher:Ostdiek

Chapter7: Electricity

Section: Chapter Questions

Problem 16Q

See similar textbooks

Related questions

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 units of 0) of a wire made of a material with a resistivity of 3.2 x 108…

Q: A 1.3-m long copper wire (resistivity 1.68x108 Q-m) has a resistance of 7 Q. What is the diameter…

Q: A wire of diameter 0.600 mm and length 55.0 m has a measured resistance of 1.20 Ω. What is the…

A: The diameter of wire is 0.600 mm, thus the radius and area of wire is, r=d2 =0.600×10-3m1 mm2…

Q: Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a resistance…

Q: What is the resistance (in units of a) of a wire made of a material with a resistivity of 3.2 x 100.…

A: RESISTANCE

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 38.8 Q at 20.0°C. If…

A: Find the temperature coefficient of resistivity. R=R01+αT-T0RR0=1+αT-T0RR0-1=αT-T0α=RR0-1T-T0

Q: The resistivity of silver ρ = 1.61 x 10-8 Ω.m. If you have a length of silver wire that is 3.15 m…

A: the radius of the wire is 241 micro meter.the resistance of the wire is,

Q: When 100.0 V is applied across a 5-gauge (diameter 4.621 mm) wire that is 10 m long, the magnitude…

A: Given: Find the resistivity of the wire Now,

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

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…

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

Q: A wire is made out of aluminum with a cross-sectional area of 5.75×10−4 m2 and a length of 40 km.…

A: The resistance of the aluminium wire is

Q: How long is a tungsten wire if it has a diameter of 0.195 x 10-3 m and a resistance of 3.33 k2? The…

Q: A metallic wire is stretched from original length of 3 m to 6 m. If the original cross-sectional…

A: As the volume is constant,

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: The wire segment shown below is made of copper with a length of 300.0 m, across sectional area of…

Q: A metallic wire is stretched from original length of 3 m to 6 m. If the original cross-sectional…

Q: What diameter must a copper wire have if its resistance is to be the same as that of an equal length…

A: Resistance is the electrical component that provides opposition to the flow of electrical current in…

Q: A copper wire has a diameter 6.2 mm and resistivity 1.6 x 10-8 2m. What will be the length of this…

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: An iron wire has a diameter 2.45 mm and resistivity 9.71x 10 Om. What will be the length of this…

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 40.0 Q at 20.0°C. If…

A: Given, length of wire=3m cross-sectional area=0.450mm^2 Resistance Ro=40 ohm at 20 c Resistance…

Q: A coil of copper wire whose resistivity is 10.37 ohm-CM/ft has a length of 600 ft. What is the…

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: An iron wire has a diameter 0.85 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 10-8…

Q: A gold wire has a length of 23.0 m and a resistance of 4.70 Ω at 20.0°C. Assuming a circular…

Q: How long Lis a tungsten wire if it has a diameter of 0.173 x 10-3 m and a resistance of 2.77 k2? The…

A: Given Data:- The diameter of the tungsten wire is d = 0.173 x 10-3 m. The resistance of the…

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 41.0 Ω at 20°C. If its…

Q: What is the resistance (in units of 2) of a wire made of a material with a resistivity of 3.2 x…

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…

Q: A conductor has a diameter of 3.0 mm. How many meters of this material is needed to have a…

A: Given data: Diameter (D) = 3.0 mm = 3.0×10-3 m Resistance (R) = 1 Ω Resistivity (ρ) = 1.68×10-8 Ω.m…

Q: An electrical engineer wants to have a copper wire with resistance equal to 5 ohms. If the wire has…

A: Given, Resistance = 5 ohms Radius = 1 mm

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 diameter 0.550 mm and length 45.0 m has a measured resistance of 2.80 Ω. What is the…

A: Given diameter of wire = 0.550 mm length of wire = 45.0 m resistance of of = 2.80 Ω We have to find…

Q: A gold wire of 0.500 mm diameter has 8.50 × 1028 conduction electrons per cubic meter. If the drift…

A: Given data: Diameter (d) = 0.500 mm = 0.500×10-3 m Number of electrons per cubic meter (n) =…

Q: The resistance of a copper wire at 20 deg. C is 30 ohms. If the temperature coefficient of copper at…

Concept explainers

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.

Question

aboard/ My courses / PHYS1100 / Homework No.2 / Homework No.2
Moving Forward
estion 2
E yet
wered
An iron wire has a diameter 6.4 mm and resistivity 9.71x 10-8 Qm. What will be the length of this wire to make
a resistance of 200. What will be the new resistance, if the radius is doubled?
rked out of
Flag question
(a) Length of the wire (in m) =
(b) Resistance of the wire (in )Q =
Type here to search

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1 :Introduction

VIEW

Step 2 :Calculation of the length of the wire

VIEW

Step 3 :Calculation of new resistance

VIEW

Step 4 :Conclusion

VIEW

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.

Similar questions

(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . Six resistors, all having the same temperatures and compositions, are each attached to a battery with voltage V to form a simple circuit. The resistors have different lengths, l, but the same diameters. Rank the circuits according to the current that flows through the resistor from smallest to greatest. If two (or more) circuits have the same current flowing, give them the same ranking. Explain the rationale you used to establish your rankings. Circuit 1: l = 2 cm; V = 3 V Circuit 2: l = 2 cm; V = 6 V Circuit 3: l = 1 cm; V = 3 V Circuit 4: l = 1 cm; V = 6 V Circuit 5: l = 3cm; V = 2 V Circuit 6: l = 3cm; V = 6 V
Suppose we have 9 pieces of very fine wire made of tungsten, 0.05 mm in diameter and each 2 meters long. That's approximately the distance between your fingertips when your arms are outstretched in both directions. If the resistivity of tungsten is 5.6×10−85.6×10−8 ohm•m answer these questions. 1. What is the resistance of one of the wires, how much current will it carry if a voltage of 9 V is applied to it, and how much power will that be?
Hi, can you help me to understand this problem by helping me through STEP BY STEP solution. The answer is given in the photo that i provide and here is the problemDetermine the resistance of a 1-mile length of 12-gauge copper wire. Given: 1 mile = 1609 meters and diameter = 0.2117 cm.
Why do your wirings at home have different diameters? What is the unit for current density? How does the length of a wire affect its resistance?
The resistivity of copper is 1.72E-8 Ω×m. What is the resistance of a copper wire that is 27.5 m long and has a diameter of 7.99E-3 m (in Ω)?
How much would you have to raise the temperature of a copper wire (originally at 20°C) to increase its resistance by 15 % ? (i.e. ∆T = ?)
Gold is the most ductile of all metals. For example, one gramof gold can be drawn into a wire 2.40 km long. The density ofgold is 19.3 x 103 kg/m3, and its resistivity is 2.44 x 10-8 Ω ⋅ m.What is the resistance of such a wire at 20.0°C?
My homework asks : rest is given in the question. Can you help with my homework? The amount of charge q (in C) passing through the 3 cm2 surface over time q =4t3Changes to + St + 6. (Here t is in seconds.) T =What is the value of the current density for 2 s?
A wire 1.3m long and a cross-sectional area of 0.390mm^2 has a resistance of 33.9ohms at 20degreesC. If the resistance of the wire increases to 39.7ohms at 28.6degreesC, what is the temp coefficient of resistivity for the wire? - .01989 - .0170 - .674 - .0409 - .0350
Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.40 km long. What is the resistance of such a wire at 20°C?
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . A power supply is connected to two bare wires that are inserted into a glass of saltwater. The resistance of the water decreases as the voltage is increased. Sketch a graph of the voltage versus the current in the water showing this type of behavior.
(Indicates a review question, which means it requires only a basic understanding of the material to answer. Questions without this designation typically require integrating or extending the concepts presented thus far.) . A simple electric circuit consists of a constant-voltage power supply and a variable resistor. What effect does reducing the resistance have on the current in the circuit and on the power output of the power supply?