Silver at room temperature is found to have a resistivity of 1.59×108 №∙m. If the temperature i increased to 150°C what will be the resistivity of the silver?
Q: Let's say you have a 20 cm long silicon wire, with a diameter of 4 cm. What current flows through…
A: Write the given values with suitable variables. L=20 cm=0.2 mr=4 cm2=0.02 mV=1000 Vρ=2300 Ω.m Here,…
Q: The resistance of a copper wire at 7⁰C is 50 mΩ. If the temperature coefficient of copper at 0⁰C is…
A:
Q: 1) A resistor has a value of 20 ohms (Ω) when it is at 15 degrees Celsius. If the coefficient of…
A: For question (1),Given,The resistance at is The coefficient of thermal resistivity is The final…
Q: A temperature-stable resistor is made by connecting a resistor made of silicon in series with one…
A:
Q: At what temperature will silver have a resistivity that is two times the resistivity of iron at room…
A: The resistivity of silver is calculated as, Rt = R0[1+α(T-T0)] Here, Rt is the resistivity…
Q: At what temperature will silver have a resistivity that is four times the resistivity of copper at…
A: It is asked to find at what temperature silver have a resistivity that is four times the resistivity…
Q: Silicon is a semiconducting metal with a resistivity of 640 . m. HINT (a) Determine the current per…
A: Given value--- resistivity = 640 ohm m. voltage = 4.92 V. length = 1.79 mm. We have to find---…
Q: Nichrome alloy has a resistivity of 110 × 10−6 Ωcm. From a roll of nichrome wire of 2.5 mmdiameter,…
A: Given, Resistivity ρ=110×10-6 ohm cm diameter=2.5 mm radius r=1.25 mm L=1 Area of the roll of…
Q: wire has a diamter of D=0.65 cm and is L=6.5 m long. When connected to a V=14 V source the wire…
A:
Q: Wire thickness is typcially measured with the term Gauge (AWG). The smaller the gauge, the thicker…
A:
Q: At what temperature will aluminum have a resistivity that is three times the resistivity copper has…
A: Given data The copper is placed at room temperature ∆t = 20°C. The mathematical formulation for the…
Q: Q1: A conductive wire has a resistivity of (0.649×10-8(Q.m)') at room temperature are (5.8x10» )…
A: Given- Conductivity σ=0.649×10-8(Ω.m)-1So,Resistivity ρ=1σ=10.649×10-8=1.54×108Ω.m Conduction…
Q: An aluminum wire with a diameter of 0.105 mm has a uniform electric field of 0.235 V/m imposed along…
A:
Q: IF a alloy containing a resistivity of 1.1 × 10−6 Ωm. From a roll of wire of 2 mm diameter, a length…
A: Given Resistivity ρ = 1.1 x 10-6 ohm.m Diameter D = 2 mm = 2 x10-3 m Length L = 1.5
Q: At what temperature will silver have a resistivity that is four times the resistivity of iron at…
A: resistivity of iron at room temperature = ρt = 9.71 x 10-8 ohm- m resistivity of silver at zero…
Q: Problem 5: A nichrome rod of length LN 58 cm is connected in series (end to end) to a carbon rod of…
A: Resistanace of a material is given as,R= Resistance of the materialL= length of the materialA= Cross…
Q: A current-carrying gold wire has diameter 6.89 mm. The electric field in the wire is 9.24 V/m. What…
A:
Q: Aluminum at 20°C has a resistivity of 2.65×108 m¹ if the temperature is increased to 60°C estimate…
A: The resistivity of a material is an intrinsic property. But it depends on the temperature of the…
Q: A current of 0.228 A flows through a(n) 8.22 2 resister. Calculate the voltage drop across the…
A: Given : Current = 0.228 A Resistance = 8.22 Ω
Q: Don't use chatgpt
A:
Q: Iron has a resistivity of 9.71×10° Nm at 20°C. What will the resistivity of Lead when then…
A: We have given Resistivity at 20oC is ρo= 9.71× 108 Ω.m Initial temperature To = 20oC Final…
Q: A wire is 1.5 m long and 1.1 mm2 in cross-sectional area. It carries a current of 5.9 A when a 2.8 V…
A: Given data: Wire length (L) = 1.5 m Cross-sectional area (A) = 1.1 mm3 = 1.1×10-6 m3 Current (I) =…
Q: The resistivity of pure germanium = 600 x 10-3 m. Calculate the resistance of a cylinder of pure…
A:
Step by step
Solved in 3 steps
- At what temperature will gold have a resistivity that is two times the resistivity of tungsten at room temperature?°CNeeds Complete typed solution with 100 % accuracy.Does the resistivity of a copper increase or decrease when it is heated to a higher temperature? How does the grain size influence the copper resistivity? Please explain.
- Problem 3: A 1.2 g wire has a density of 2.7 g/cm3 and a resistivity of 2.7 × 10−8 Ωm. The wire has a resistance of 15 Ω. a) How long is the wire? b) The wire is made up of atoms with valence 1 and molar mass 26.98 g/mol. What is the drift speed of the electrons when there is a voltage drop of 30 V across the wire?Question A2 Pure copper has a resistivity of 1.68 x 10-8 Nm. Some accurate cubes of copper are prepared, and electrical measurements are made, for which current is passed across a pair of opposite faces. a) Comparing a 2.5 cm cube and a 5 cm cube, which will have the higher conductance? Ex- plain your answer. b) Given eight 1 cm cubes, how can they be stacked to get the highest and the lowest resis- tance between opposite faces of the stack? Calculate the resistance of each stack.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?
- Nichrome alloy has a resistivity of 110 × 10−6 Ωcm. From a roll of nichrome wire of 2.5 mmdiameter, a length 1 m long is taken.a) Calculate the resistance R and the conductance G of the piece of wire.b) A second piece also 1 m long is connected in parallel to the first. Calculate the resistanceand conductance of the pair.Copper is used in all household wiring. However, Aluminum, being much cheaper, is used in power distribution over large distances. The resistivity of Cu wire is 1.68x10-8 m and the resistivity of Aluminum wire is 2.65x108 2m. A typical power line might be 4.6 cm in diameter. Power lines transmit power at very high voltages so that relativley small current can be used. What is the power loss in a single line of Aluminum carrying a current of 140 A through a distance of 220 km? Number W. What is the power loss in a single line of Copper carrying a current of 140 A through a distance of 220 km? Number W. If the average cost of electricity in Ontario is $0.125 per kWh, the cost of copper is 12.6 dollars /kg, and the cost of Aluminum is 4 dollars/kg, how much time of continuous power transmission is required/(km of line) before the cost savings during use balances the extra cost of using copper. The density of Aluminum is 2700kg/m³ and the density of copper is 8960 kg/m³. Number years.