Class number:Schedule:Date:1. A wire 50 m long and 1 mm in radius is connected to a battery 9.11 V with a current of 36 A.Takıng the temperature at 20°C and using the table of resistivities for some materials above,determine the material of the wire. (Copper)An electric ho

Given data: Length of the wire l =50 m Radius r =1 mm Battery voltage V =9.11V Current I =36 A

Date: A wire 50 m long and 1 mm in radius is connected to a battery 9.11 V with a current of 36 A. Taking the temperature at 20°C and using the table of resistivities for some materials above, determine the material of the wire. (OCopper)

Date: A wire 50 m long and 1 mm in radius is connected to a battery 9.11 V with a current of 36 A. Taking the temperature at 20°C and using the table of resistivities for some materials above, determine the material of the wire. (OCopper)

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A new material is found to be superconducting below 77 K. How much resistance will a 75 mm long sample of this material have if it is at a temperature of 69.3 K while connected to a 6.4 V AC-power supply? R = How much thermal energy will it generate?Thermal energy generated =
1. Consider a cylindrical wire that has conduction electron density 6.0 × 1028 1 ,3 and radius 0.5 mm. An electric field with strength m- 7.5 × 10-4 creates a current of 4.8 x 10! electrons per second. a) What is the average drift speed for an electron? (include units) b) What is the average time in between electron collisions? fs (express your answer in femtoseconds)
The Resistance of Nichrome Wire The radius of a piece of Nichrome wire is 0.306 mm. (Assume the wire's temperature is 20°C.) (a) Calculate the résistance per unit length of this wire. SOLUTION Conceptualize This table shows that Nichrome has a resistivity two orders of magnitude larger than the best conductors in the table. Therefore, we expect it to have some special practical applications that the best conductors may not have. Categorize We model the wire as a ---Select--- so that a simple geometric analysis can be applied to find the resistance. Analyze Use this equation and the resistivity of Nichrome to find the resistance per unit length (in 0/m): R 0/m %3D %3D %3D A (b) If a potential difference of 10 V is maintained across a 1.0 m length of the Nichrome wire, what is the current in the wire? SOLUTION Analyze Use this equation to find the current (in A): AV I = %3D A R Finalize Because of its high resistivity and resistance to oxidation, Nichrome is often used for heating…
Question 2/ Vraag 2: Current and Resistance 2.1 A piece of wire I cm long carries a current I when a voltage V is applied across its ends at a temperature of 0°C. If the resistivity of the material of which the wird is made varies as shown in the figure, what length of the same diameter wire is needed so that the same current flows when the same voltage is applied at temperature 400°C? (4) 12 10 8 200 400 600 800 1000 Temperature ("C) Resistivity (10 2m)
The resistivity of a material used to make a round 950W resistor is 53W per unit length. If the resistor has a radius of 0.16 in, what is it’s length?
A current-carrying gold wire has diameter 6.96 mm. The electric field in the wire is 0.58 V/m. What is the current carried by the wire in kA? Note that the resistivity of gold is = 2.44x10-8 m dont round off and show the final answer in 3 decimal places if possible
When an electric heater is turned on, the Nichrome heating element is at 0° C and draws a current of 18 A, with a potential difference of 120 V between the ends of the element. The element heats up to 795° C, with the potential difference constant. Find the final current. (The temperature coefficient of resistivity of Nichrome is 4.0 10-4 (°C)-1.)
determine the current in the wire. (Use the values in the following table.) If the wire is heated to 34.0°C while the 7.00-V potential difference is maintained, what is the resulting current in the wire?
E28. According to a safety code, the maximum allowable current for a 14 gauge copper wire (diameter, 1.628 mm) is 15 A, and it is 5 A for an 18 gauge wire (diameter 1.024 mm). What would be the potential difference between the ends of a 10m length of each type of wire for maximum current? ∆V14 = 1.23 V ; ∆V18 = 1.03 V Please show steps and formulas for my own understanding.
Q7.(Page No.369, 18.9 Exercises, Problem No.3). The resistivity of a sample of germanium is 60x 102 Im. A cylinder of germanium 50mm long and 0.50 mm in radius has a p.d. of 10 v applied across its ends. (a) What current passes through the specimen? (b) What is the current density (1/A) in the sample?
1. Consider a cylindrical wire that has conduction electron density 6.0 x 1028 and radius 0.5 mm. An electric field with strength 1 m3 7.5 x 10-4 creates a current of 4.8 × 10" electrons per second. a) What is the average drift speed for an electron? (include units) b) What is the average time in between electron collisions? fs (express your answer in femtoseconds)
The graph below shows data for a wire that is 9 m long & has a cross-sectional area of 0.002 m². The wire is made from an unknown material. Determine the resistivity of the material and the power loss of the wire when the current is 100 A. VOLTAGE vs. CURRENT GRAPH V (V) 500 400 300 200 100 20 40 60 80 1 (A) 100 resistivity of wire = power loss (when I = 100 A) = ABACHER 2-m