If we stretch a copper rod, making it 0.1% longer, a) How much would its resistance vary? b) What behavior do we assume for copper in deformation?
Q: (a) Of what material is a wire made, if it is 20.0 m long with a 0.150 mm diameter and has a…
A: Given: The length of the wire is 20 m. The diameter of the wire is 0.15 mm. The resistance of the…
Q: a) The time rate at which charge flows through the area is defined as the electric current. b) The…
A: a) True , because current is the time rate of flow of charge in unit area. b) False , because the…
Q: The resistance of a copper wire at 7⁰C is 50 mΩ. If the temperature coefficient of copper at 0⁰C is…
A:
Q: 5. Using the circuit symbols (lesson 4), label the circuit diagram. Be sure to classify the circuit…
A: 5. here given circuit is open and closed circuit.
Q: a wire of uniform cross-section has a resistance of R. What would be the resistance of a similar…
A: We know the expression for resistance is R=ρLA Resistance of wire 1 R1=ρLAR1=ρLπd22R1=4ρLπd2…
Q: Pure copper has a resistivity of 1.68 x 10-8 Qm. Some accurate cubes of copper are prepared, and…
A:
Q: , in units of Ω, of the rod? b) What is the current, in units of miliamperes, in the rod
A: Given:- L=9 m A= 2.5 mm2 ρ=ρ01-x2L2 ρ0=2×10-4 ΩV0=25 V Find:- a) What is the total resistance, in…
Q: Suppose you wish to fabricate a uniform wire out of 1.25 g of copper. If the wire is to have a…
A: Given: M=1.25 Density(D)=8940 Kg/m3 Resistivityρ=0.0171 Ωm To find: (a)Length of the uniform copper…
Q: A person with a body resistance between hands of 10 kilo ohms accidentally grasps the ternminals of…
A: The given discription can be given in an electrical equivalent circuit as shown.
Q: A flashlight uses batteries that add up to 3 V and has a powerr output of 0.0005KW. A) how much…
A: The data given is as follows, 1. The voltage is, Vb=3V 2. The output power is, P=0.0005 kW=0.5 W The…
Q: A block of carbon is 3.6 cm long and has a square cross-sectional area with sides of 3 cm. A…
A: 1) The required resistance is,
Q: Resistivity of steel is larger than that of copper. If a copper wire and a steel wire are having the…
A:
Q: You have two long pieces of nichrome which have the same volume. One of them is a cylinder with…
A:
Q: We have a copper conductor, length l = 1m and circular section of diameter d = 4mm a) Calculate the…
A: Part (a) Basic Details The resistance of the conductor depends on the resistivity, the length of the…
Q: A 15.2 Ω resistor is made from a coil of copper wire whosetotal mass is 15.5 g. What is the diameter…
A: Resistance, R = 15.2 Ω mass, m = 15.5 g Resistivity = 1.7 x 10-8 Ωm
Q: a) Determine the length (in mm) of a gold conductor that has a resistance of 0.018 Ω and a…
A: Given data: Resistance (R) = 0.018 Ω Cross-sectional area (A) = 3.4 × 10-9 m2 Resistivity of gold…
Q: resistance of a 25 cm
A:
Q: An electric flat iron draws a current of 15 A when connected to a 220 V line. (a) What is the…
A:
Q: ISuppose that you wish to fabricate a uniform wire out of 4.56 g of copper. If the wire is to have a…
A:
Q: An aluminum rod with a square cross section is 1.3 m long and 5.2 mm on edge. (a) What is the…
A:
If we stretch a copper rod, making it 0.1% longer,
a) How much would its resistance vary?
b) What behavior do we assume for copper in deformation?
Step by step
Solved in 3 steps with 2 images
- Digital thermometers often make use of thermistors, a type of resistor with resistance that varies with temperature more than standar resistors. Find the temperature coefficient of resistivity (in (°C)-1) for a linear thermistor with resistances of 56.2 Q at 0.00°C and 274 at 522°C. HINT Lan 1A hollow conducting cylinder has a length,and inner and outer radii . It is made of a material with resistivity.A potential difference is set up between the inner and outer surfaces of the cylinder. Calculate the resistance of the cylinder.Given the temperature coefficient of resistivity of a certain wire to be 3.1 x10-3 (°C)-1.By what factor is the resistance of this wire changed when its temperature is increased from 20.0°C to 79.48 °C? R Ro
- Suppose you wish to fabricate a uniform wire from 1.30 g of copper. The wire is to have a resistance of R = 0.460 N and all the copper is to be used. (a) What must be the length of this wire? (b) What must be the diameter of this wire? umIn order to double its resistance, by how much would you have to increase the temperature of a piece of the following? (a) copper (The temperature coefficient of resistance for copper is 3.9 × 10-3 (°C)-¹.) °C (b) Nichrome (The temperature coefficient of resistance for Nichrome is 4.0 × 10-4 (°C)-¹.) °CA 1 m long wire is stretched to 1.7 m long. What is the percentage change in its resistance? SR R The change, 100% = 70 Units no units required ✓✓
- An insulated extension cord is made of a 1.5-meter long copper rod with a diameter of 2.3 millimeters. (a) What is the resistance of the extension cord? (b) If an aluminum wire of the same length will be used instead of copper what should be the diameter of the aluminum wire to have the same resistance?Suppose you wish to fabricate a uniform wire out of 1.20 g of copper. If the wire is to have a resistance R = 0.520 Ω, and if all the copper is to be used, find the following. (a) What will be the length of the wire in meters?(b) What will be the diameter of the wire in milimeters?Suppose you wish to fabricate a uniform wire from 1.10 g of copper. The wire is to have a resistance of R =- 0.420 n and all the copper is to be used. (a) What must be the length of this wire? m (b) What must be the diameter of this wire? um
- Suppose you wish to fabricate a uniform wire from 2.50 g of copper. The wire is to have a resistance of R = 0.660 N and all the copper is to be used. (a) What must be the length of this wire? 3.27 (b) What must be the diameter of this wire? 6.74 Can you calculate the total volume of 2.50 grams of copper? umA wire of uniform cross-section has a resistance of R. What would be the resistance of a similar wire, made of the same material, but twice as long and of twice the diameter?Essay: A cylindrical rod has resistance R. If we triple its length and diameter what is its resistance, in terms of R?