1.An experiment was performed to investigate how the resistance of amaterial wire varies with the temperature. The following data was recorded.Resistance/2 TemperatureTheory suggests that the resistance of the wire is related to its temperatuiby the expression, R = R,(1 + at), where Ro, is the resistance at atemperature, 0°C, and a is a constant.330.010340.020(a) Plot a suitable graph from which Ro and a could be obtained.350.030(b) Use the graph to obtain the values of R, and a(c) Say whether this material is a conductor or semiconductor.360.040370.050380.060389.070400.080410.085

We have to draw a graph of R v/s T . Resistance on x-axis. Temperature on y-axis.

1. An experiment was performed to investigate how the resistance of a material wire varies with the temperature. The following data was recorded. Resistance/2 Temperature Theory suggests that the resistance of the wire is related to its temperatui by the expression, R = R,(1+ a€), where Ro, is the resistance at a temperature, 0°C, and a is a constant. 330.0 10 340.0 20 (a) Plot a suitable graph from which Ro and a could be obtained. 350.0 30 (b) Use the graph to obtain the values of Ro and a (c) Say whether this material is a conductor or semiconductor. 360.0 40 370.0 50 380.0 60 389.0 70 400.0 80 410.0 85

1. An experiment was performed to investigate how the resistance of a material wire varies with the temperature. The following data was recorded. Resistance/2 Temperature Theory suggests that the resistance of the wire is related to its temperatui by the expression, R = R,(1+ a€), where Ro, is the resistance at a temperature, 0°C, and a is a constant. 330.0 10 340.0 20 (a) Plot a suitable graph from which Ro and a could be obtained. 350.0 30 (b) Use the graph to obtain the values of Ro and a (c) Say whether this material is a conductor or semiconductor. 360.0 40 370.0 50 380.0 60 389.0 70 400.0 80 410.0 85

University Physics Volume 2

18th Edition

ISBN:9781938168161

Author:OpenStax

Publisher:OpenStax

Chapter9: Current And Resistance

Section: Chapter Questions

Problem 47P: (a) Of what material is a wire made, if it is 25.0 m long with a diameter of 0.100 mm and has a...

See similar textbooks

Related questions

Q: cts er of

A: Given data: The resistance R =187.4 ft. Resistance thermometer R=164.2 ft Temperature T= 20°C…

Q: Resistance in metals increases with increasing temperature according to the equation, ρ(T) = ρo(1 +…

Q: A set of current (I) and voltage (V) data is collected for a given circuit. The current is measured…

A: From Ohm's law, we know V = I R V is Voltage , I is current and R is resistance.

Q: Three resistors, R1= 30 Ω, R2= 77 Ω, and R3=R, are connected in parallel with a 12 V battery. A)…

Q: 3. The resistance of a copper wire with circular cross section of radius a and length L is R. If we…

Q: 1. Wires A and B are made for the same material and have the same length. However, the diameter of…

A: Note : We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: A. What is the effect on the current in a wire if the voltage is doubled and the resistance is…

Q: The resistance of a certain copper wire is 0.7 2. Part A Determine the resistance of a tungsten wire…

Q: A certain geophysical technique determines the electrical resistivity of the ground by measuring the…

A: Uncertainties in measurement arise due to mainly three reasons, Instrument, Human and Environment…

Q: The potential difference across a resistor in a particular electric circuit is 360 V. The current…

A: Given data: Potential difference (V) = 360 V Current (I) = 10.0 A Required: Resistance (R)

Q: In the circuit shown, the potential difference VA = VB = 46.0 V and the resistance R1 = R2 = R3 = R4…

A: The potential difference and the resistance

Concept explainers

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.

Question

1.
An experiment was performed to investigate how the resistance of a
material wire varies with the temperature. The following data was recorded.
Resistance/2 Temperature
Theory suggests that the resistance of the wire is related to its temperatui
by the expression, R = R,(1 + at), where Ro, is the resistance at a
temperature, 0°C, and a is a constant.
330.0
10
340.0
20
(a) Plot a suitable graph from which Ro and a could be obtained.
350.0
30
(b) Use the graph to obtain the values of R, and a
(c) Say whether this material is a conductor or semiconductor.
360.0
40
370.0
50
380.0
60
389.0
70
400.0
80
410.0
85

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 We are given a data table :-

VIEW

Step 2 a) Drawing the graph :-

VIEW

Step 3 Calculating resistance at T=0 and the value of alpha using graph :-

VIEW

Step by step

Solved in 3 steps with 2 images

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

(a) Of what material is a wire made, if it is 25.0 m long with a diameter of 0.100 mm and has a resistance of 77.7 at 20.0C ? (b) What is its resistance at 150.0C ?
Using your understanding of the nature of internal energy and temperature, explain why we might expect the resistance of a solid to increase if its temperature increases.
The current I is measured through a sample of an ohmic material as a voltage V is applied, (a) What is the current when the voltage is doubled to 2V (assume the change in temperature of the material is negligible)? (b) What is the voltage applied is the current measured is 0.27 (assume the change in temperature of the material is negligible)? What will happen to the current if the material if the voltage remains constant, but the temperature of the material increases significantly?
A 12-guage gold wire has a length of 1 meter. (a) What would be the length of a silver 12-gauge wire with the same resistance? (b) What are their respective resistances at the temperature of boiling water?
How does the resistance for copper and for silicon change with temperature? Why are the behaviors of these two materials different?
A 10.00-meter long wire cable that is made of copper has a resistance of 0.051 ohms, (a) What is the weight if the wire was made of copper? (b) What is the weight of a 10.00-meter-long wire of the same gauge made of aluminum? (c)What is the resistance of the aluminum wire? The density of copper is 8960 kg/m3 and the density of aluminum is 2760 kg/m3.
a) Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a resistance of 77.7at 20,0°C ? (b) What is its resistance at 150°C ?
A 20.00-V battery is used to supply current to a 10-k resistor. Assume the voltage drop across any wires used for connections is negligible, (a) What is the current through the resistor? (b) What is the power dissipated by the resistor? (c) What is the power input from the battery; assuming all the electrical power is dissipated by the resistor? (d) What happens to the energy dissipated by the resistor?
Unreasonable Results (a) To what temperature must you raise a resistor made of constantan to double its resistance, assuming a constant temperature coefficient of resistivity? (b) To cut it in half? (c) What is unreasonable about these results? (d) Which assumptions are unreasonable, or which premises are inconsistent?
A 1,00-?O voltmeter is placed in parallel with a 75.0kresistor in a circuit, (a) Draw a circuit diagram of the connection, (b) What is the resistance of the combination? If the voltage across the combination is kept the same as it was across the 75.0-kresistor alone, what is the percent increase in current? (d) If the current through the combination is kept the same as it was through the 75.0-kresistor alone, what is the percentage decrease in voltage? (e) Are the changes found in parts (c) and (d) significant? Discuss.
(a) What is the resistance often 275-O resistors connected in series? (b) In parallel?
A 160F capacitor charged to 450 V is dischargedthrough a 31.2k resistor, (a) Find the time constant.(b)Calculate the temperature increase of the resistor, given that its mass is 2.50 g and its specific heat is 1.67kJ/kg °C,noting that most of the thermal energy is retained in the short time of the discharge, (c) Calculate the new resistance, assuming it is pure carbon. (d) Does this change in resistance seem significant?