A ribbon of material with a rectangular cross sectional area of (0.25 mm x 1.00 mm), length 21.9 cm and resistance 1.5 is used as a heatingelement in a toaster. What is the resistivity of the material?Select one:O a. 1.31 x 10-6 Q:mO b. 1.00 x 10-6 Q:mO c. 1.71 x 10-6 Q:mO d. 1.97 x 10-6 Q:me. 1.50 x 10-6 Q:m

The resistance of a material is proportional to R∝lAR=ρl A ρ=resistivity The…

Answered: A ribbon of material with a rectangular…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter20: Electric Current, Resistance, And Ohm's Law

Section: Chapter Questions

Problem 33PE: a) Of what material is a wire made, if it is 25.0 m long with a 0.100 mm diameter and has a...

See similar textbooks

Similar questions

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 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.
An extension cord has a resistivity of p = 7.5 x 10-8 Ω.m. The cord is made from copper wire with a diameter D = 0.45 cm and it is L = 9.9 m long. (a) What is the resistance in ohms? R = (b) If a current of I= 2.95 A passes through the wire what voltage is the cord connected to, in volts? V=
(a) Of what material is a wire made, if it is 30.0 m long with a 0.130 mm diameter and has a resistance of 35.9 Ω at 20.0°C? aluminum silver tungsten lead (b) What is its resistance (in Ω) at 140°C?
A gold wire carries 24.5 A of current with a drift velocity of 2.5 × 10-3 m/s. Assume there is one free electron per gold atom, and the density of gold is 1.93 × 104 kg/m3. The molecular weight of gold is 196.97 g/mol. Part (a) What is the diameter of this gold wire? d = m Part (b) For the problem above, calculate the resistance of the wire under those conditions. Assume the wire is 3.8 m in length, and the resistivity of gold is 2.44 × 10-8 Ω⋅m. R = Ω Part (c) How much power is dissipated by this wire? P= W Part (d) If the wire is heated by an additional 89 K (compared to part (a)), what is the new resistance at this increased temperature? The temperature coefficient of resistivity for gold is 3.4 × 10-3 °C-1 R = Ω Part (e) Under the conditions in part (d), what is the value of the potential for the wire? V =…
As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with uniform cross-section. You use up 95% of the nichrome and make a wire with a resistance of 0.713 Ω. The resistivity of nichrome is 1.00 10-6 Ω · m and its density is 8.31 103 kg/m3. (a) What length of wire do you end up with? m(b) What is the diameter of the wire? mm
As part of a class project you are given 0.900 g of Nichrome and asked to fabricate a wire with uniform cross-section. You use up 95% of the Nichrome and make a wire with a resistance of 0.623 Ω. The resistivity of Nichrome is 1.00 • 10-6 Ω•m and its density is 8.31 • 103 kg/m3. a) What length of wire do you end up with? ___ m b) What is the diameter of the wire? ___ mm
As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with uniform cross-section. You use up 95% of the nichrome and make a wire with a resistance of 0.793 Ω. The resistivity of nichrome is 1.00 10-6 Ω · m and its density is 8.31 103 kg/m3. a. What length of wire do you end up with? b. What is the diameter of the wire?
3. What will be the resistance of a copper wire that has a radius of 2 cm and length of 100 cm? The resistivity of the copper wire is 1.7x10^(-8) ohm.meter? a. 400 b. 500 c. 600 d. NONE OF THE CHOICES 4. Calculate the temperature of a wire if its resistance is increase to 200 ohm from 150 ohm at 25 degree Celsius. The temperature coefficient of the wire is 0.0225 per degree Celsius. a. 46.28 b. 26.48 c. 84.26 d. NONE OF THE CHOICES 5. Find the current rating of a defibrillator that can pass electric charge at 200 mA at 0.127 seconds. Calculate also the number of electrons on that particular time. a. 2.57 A and 125 electron b. 5.57 A and 1250 electron c. 7.57 A and 12500 electron d. NONE OF THE CHOICES Please don't write in a paper. I can't understand handwritten well.
1) A 52.0-g sample of a conducting material is all that is available. The resistivity of the material is measured to be 12 ✕ 10−8 Ω · m, and the density is 7.09 g/cm3. The material is to be shaped into a solid cylindrical wire that has a total resistance of 1.5 Ω. (a) What length of wire is required? _____ m (b) What must be the diameter of the wire? _______ mm 2) A battery having an emf of 9.23 V delivers 116 mA when connected to a 62.5 Ω load. Determine the internal resistance of the battery. ______ Ω

Recommended textbooks for you

College Physics

Physics

ISBN:

9781938168000

Author:

Paul Peter Urone, Roger Hinrichs

Publisher:

OpenStax College

University Physics Volume 2

Physics

ISBN:

9781938168161

Author:

OpenStax

Publisher:

OpenStax

College Physics

Physics

ISBN:

9781938168000

Author:

Paul Peter Urone, Roger Hinrichs

Publisher:

OpenStax College

University Physics Volume 2

Physics

ISBN:

9781938168161

Author:

OpenStax

Publisher:

OpenStax

SEE MORE TEXTBOOKS