A certain resistor has a resistance of 1.234 Ω at 20oC and a resistance of 1.617 Ω at 42oC. What is its coefficient of resistivity?

Q: If 0.050 A of current flows across the 300 ohms resistor, what is the voltage drop in 100-ohms…

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Q: order to triple its resistance, by how much would you have to increase the temperature of a piece of…

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Q: What is the resistance of a light bulb if 0.50 A flows through it when 120 V is connected across it?

A: As per the answering guidelines we will solve only first problem. Please upload the other problems…

Q: Number 12 copper wire (diameter 0.08080 inch) used for electrical installations in homes. What is…

A: Given, Diameter of wire,d=0.08 inch=0.002 m Length,L=50 m Resistivity,ρ=1.7×10-8Ωm Current,I=6 A

Q: 1. If electricity costs 15 Bz per kilowatt-hour, how much does it cost to operate a 220 V water…

A: Given Data : The voltage across in the air conditioner is given as V = 220V The current flowing…

Q: 3. Find the readings of the ammeter and voltmeter in the circuits in Figure 3. The resistance of the…

A: All the resistances given here are in parallel configuration. Thus, the voltage across these…

Q: What causes resistivity in ordinary conductors? Why (and in what way) does the resistivity change if…

A: Resistivity is a measure of a material's ability to oppose the flow of an electric current. It is…

Q: The resistance of the tungsten wire in a bulb is 20ohm when the bulb is not lit (T=20C) and 180ohm…

A: We know that relation between resistance and temperature is given by: R = R0*(1 + alpha*(T - T0))…

Q: 9- If a current of 5A passes through a conductor with a resistance of 7 ohms for 3 minutes, how…

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Q: The resistivity of aluminum is 2.82 ✕ 10−8 Ω · m.   (a) Find the resistance of an aluminum wire (in…

A: Given: The resistivity of the aluminum is 2.82 ✕ 10−8 Ω · m. The radius of the wire is 1.32 mm. The…

Q: 94. A wire with a length of 2.0 m and a diameter of 1.0 mm has a resistance of 0.45 Ω. What is the…

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Q: 12. A tungsten filament lightbulb (resistivity at 20°C of 5.6x10-8 2m, temperature coefficient of…

A: resistivity at 20oC = 5.6×10-8 ohm-meterTemperature coefficient (α) = 0.0045/CResistance at 20o C =…

Q: An aluminum wire has a resistance of 3.00 N at 31.0°C. Determine its resistance (in N) at 431°C. The…

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Q: 1. When four identical resistors, each having a resistance R are connected to a battery having emf E…

A: 1.

Q: An aluminum wire has a resistance of 3.50 Ω at 26.0°C. Determine its resistance (in Ω) at 426°C. The…

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Q: 3. A resistor with Blue, White, Green, Silver bands has a resistance of: a) 6,900,000 Ohms + 10% b)…

A: 3) The color of the first band  of the resistor gives the first digit of resistance value, color of…

Q: An aluminum wire has a resistance of 3.00 2 at 31.0°C. Determine its resistance (in 2) at 431°C. The…

A: Write the expression for the resistance at a temperature T. Here, R0 represents the initial…

Q: 1. Three resistors, 250, 450, and 750, are connected in series, and a 0.51-A current passes through…

A: As per our company guidelines we are supposed to answer ?️only first 3 sub-parts. Kindly repost…

Q: .A burning lamp is marked 800 kW, 230 kV. (a) How much current flows through the lamp? (b) What is…

A: Note: Asper Bartleby guidelines only one question has to be solved at a time. Upload other parts…

Q: 5) A thin copper wire with a diameter 2.5 mm is connected to a 1.2-V potential difference, a current…

A: Diameter,  Potential difference,  Current,  Resistivity,

Q: Two wires of the same material and with the same length have different diameters. Wire A has twice…

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Q: What should be the diameter of an aluminum wire for its resistance to be equal to that of a copper…

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Q: 13. Five resistors are connected as shown in the diagram. The potential difference b [7.5 N, 3.3 A.…

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Q: A particular wire has a resistivity of 1.5 x 10a- m and a cross-sectional area of 2.5 x 105 m2. A…

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Q: An iron wire has a diameter 3.65 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: Formula of resistance is as follows: R=ρLA…

Q: 1. If electricity costs 15 Bz per kilowatt-hour, how much does it cost to operate a 220 V water…

A: Voltage,V=220Vconsumed current,I=5Atime taken in a day=3hrtime taken in month(t)=30×3=90 hrenergy…

Q: Determine the resistance of a conductor 0.10m long, with a uniform diameter of 1.0 cm and having a…

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Q: A certain resistor is made with a 54.4 m length of fine copper wire, 5.26 10-2 mm in diameter,…

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Q: 3.0 length of copper wire (ρ = 1. 78 x 10−8Ωm) at 20oC has a cross section area of 4mm2. What is the…

A: We know that Resistance  R= PLA

Q: Two resistors are connected in parallel to a 220 V line. R1=50 ohms and R2=100 ohms. What is the…

A: A circuit is said to be connected in parallel when the voltage is the same across the resistors. In…

Q: 3- The resistance of a copper wire is 3.35 0 at 0 °C. What is its resistance at 50 °C? For copper, a…

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Q: Aluminium is used to make long-distance power lines because it has a low resistivity and is…

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Q: 6- Copper wire with diameter (Imm), have a resistance of (1KN) and conductivity |(5.8*10's/m), the…

A: Diameter of copper wired=1mm=10-3mResistance of copper wire=1kΩ=103ΩConductivity of copper…

Q: A long, straight wire has the shape of a right-circular cylinder. The length of the wire is m and…

A: Length, l = L m Thickness, d = 0.80mm Resistance, R = 5.0L

Q: 11. A typical car seat heater produces 10 W of heat using a 0.25 mm diameter steel wire connected to…

A: The resistance is,

Q: 1. The resistance of a rod with a length of 3.0 m and a diameter of 1.0 cm is 56. 0 ohms. If this…

A: “Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A particular wire has a resistivity of 1.5 x 10sn- m and a cross-sectional area of 2.5 x 105 m2. A…

A: Please see the answer below.

Q: 3. What is the electric resistance of a copper wire 225 mm long with a radius of 0.85 mm? 4. An Iron…

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Q: 1. Determine the thermal coefficient of resistance of copper at 50°C, then use this value to…

A: The variation in resistance of copper wire with temperature is given by the formula…

Q: How much electrical energy is transferred to thermal energy in 2.50 hrs by an electrical resistance…

A: Given : Potential applied across resistor is V=80 V Resistance is R=500 Ω Time is t=2.5 hr Note: 1…

Q: 12. A resistor has the following color code: red-red-orange-yellow-gold. What is its resistance? A.…

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Q: A fluid-filled catheter is 0.175 m long and has a diameter of 2.5 mm. What is the resistance(in…

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Q: Challenge #1 A conductor has a diameter of 3.0 mm. How many meters of this material is needed to…

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Q: The temperature coefficient of resistivity for copper is 0.0068°C^-1. If a copper wire has a…

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Q: 1. What is the current in a 160V circuit if the resistance is 2Ω? V= I= R 2. What is the current…

A: Please note : As per answering guidelines I can answer the first three subparts of a multisub-part…

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.