A certain light bulb has a tungsten filament with a resistance of 19.0 Ω when at 20.00C and 150Ω when hot. Assume tungsten’s resistivity varies linearly with temperature over this temperature range. Solve for the temperature of the hot filament.

Q: How much current will flow through a 40.0-m length of metal wire with a radius of 0.0 mm if it is…

A: Length of wire, l= 40. 0 m Radius, r = 0.0 mm Power source supplying of 16.0 V

Q: The resistivities of copper and aluminum are 1.7 x 10-802m and 2.6 x 10-802m respectively. What…

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Q: A copper transmission line is to be replaced by one of aluminum having the same total  resistance.…

A: In the given question, We have to determine the cross sectional area of the new aluminum wire.

Q: Gold is the most ductile of all metals. For example, one gram of gold can be drawn into a wire 2.15…

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Q: A battery with an emf of 40 V and internal resistance of 0.4 Q is connected across a load resistor…

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Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a…

A:

Q: Suppose you have a 22 m long piece of copper wire with a 2.268 mm diameter and a resistivity of 1.72…

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Q: A gold wire carries 22 A of current with a drift velocity of 4.3 × 10-3 m/s. Assume there is one…

A: Resistance of a wire is given as,                 R =ρlA                     Here,     ρ is the…

Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a 1…

A: Given-Potential V=4.5 VDiameter d=1 mm=1×10-3mRadius r=d2=1×10-32=0.5×10-3mResistivity of the copper…

Q: A high-voltage power transmission line is 200 km long, and is constructed of aluminium cable of…

A: Givenlength (l) =200 km =2 × 105 mDiameter (d) 30 mm⇒ Radius (r) =15 mm = 15 × 10-3 m

Q: 6 A nichrome wire and an aluminum wire, each with the same initial resistance, have the same change…

A: Given: Resistivity constant and thermal constant of Nichrome and aluminum wire are as follows,…

Q: Consider two coaxial conducting spheres of radii a and b = 2a. Filled with a conductive material…

A: Given  P = p0(1+r/a) And  R = p*L/A

Q: A straight, cylindrical wire lying along the x axis has a length of 0.515 m and a diameter of 0.195…

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Q: An aluminum wire has a length of 27.0 m and a resistance of 4.30 2 at 20.0°C. Assuming a circular…

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Q: The resistance equivalent is 1.43 ohms. Now a 12V battery is connected between points A and B. What…

A: Write the expression for the current according to Ohm’s law.

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

A: solution as

Q: To what temperature must you raise a gold wire (c = 0.0034), originally at 20.0°C, to double its…

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Q: Find the resistance of a cylindrical shape copper wire with radius 25 mm -8 which is shown in the…

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Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a 0.5…

A: Given that:- Diameter of wire=0.5mm Resistivity of copper wire=1.7×10^-8 ohm×m

Q: The Nichrome unit (p=660) in a toaster has a resistance of 24 ohms. What is the resistance of a…

A: resistance of nichrome unit (R) = 24 ohm Let the cross sectional area of nichrome unit = A Let the…

Q: Consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.75…

A:

Q: A cubic resistor R of side length L=2 m and resistivity p=1.5×10-6 Qm connected to a battery ɛ= 1.35…

A: Given a cubic resistor R of side length L=2 m and resistivity ρ=1.5×10-6 Ω.m connected to a battery…

Q: You’ve made the finals of the Science Olympics! As one of your tasks, you’re given 1.0 g of copper…

A: Let the mass of the copper wire is given by m. Let the length of the wire is l and area of the wire…

Q: Compute the equivalent resistance of the network in the given figure, and find the current in each…

A: Given data: Resistances: R1=1.00 ΩR2=3.00 ΩR3=7.00 ΩR4=5.00 Ω Emf: ε=48.0 V

Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a…

A: Given data: Battery Voltage (V) = 4.5 V Wire Diameter (D) = 0.75 mm = 0.75×10-3 m Power (P) = 10 W…

Q: How do you determine how much current will be flowing through a 40.0 m length of copper wire with…

A: Given:

Q: A battery with an emf of 40 V and internal resistance of 0.2 Q is connected across a load resistor…

A: The relation between the current and the voltage is given by  V = I R  where, I is the current, R is…

Q: Two ideal batteries: V1 of potential 27.02V and V2 of potential 5.89V provide power to the following…

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Q: A copper wire has a length of 38.0 m and a resistance of 4.10 Q at 20.0°C. Assuming a circular…

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Q: Consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.75…

A:

Q: A 1.2 kQ resistor carries a current of 15 mA. What is the potential difference (in V) across the…

A: GivenResistor (R)=1.2 k ohm= 1.2×103 ohmcurrent (I) = 15 mA=15×10-3 ALet V= Pottential difference…

Q: Q. m and 11.0 x 10 Q. m, determine the ratio of their lengths. Two wires have the same resistance…

A: Concept:- Resistance of a conductor having length L, cross-sectional area A  and resistivity ρ is…

Q: A conductor of radius r, length L and resistivity p has resistance R. What is the new resistance if…

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Q: The filament of a 100 W (120 V) lightbulb is a tungsten wire 0.035 mm in diameter. At the filament’s…

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Q: What color code corresponds to a resistance of 234x10 5 10% with a temperature coefficient of…

A: Value of Band 1 is 2 (Red) Value of Band 2 is 3 (Orange) Value of Band 3 is 4 (Yellow)  Value of…

Q: What diameter must a copper wire have if its resistance is to be the same as that of an equal length…

A: Resistance is defined as the obstruction faced by an electric current while moving across a…

Q: Consider a thin aluminum wire with diameter d= 6 mm The resistivity of aluminum is 2.65x10-8 Q.m.…

A: Recall R=ρL/A

Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a 0.5…

A:

Q: An aluminum wire has a resistance of 5.50 Q at 10.0°C. Determine its resistance (in Q) at 410°C. The…

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Q: A 260-V emf is connected to the terminals A and B. Here,V = 260V, R1 = 16 Ω, and R2 = 19Ω. What is…

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Q: Five identical light bulbs are connected to two power supplies, &1 = 40 V, and ɛ2 = 80 V. Each light…

A: Given data: The resistance of five identical bulbs is 10 ohm The first power supply is ε1=40 V The…

Q: consider a portable electric blanket that runs on a 1,5 V battery. ıf you use copper wire with a 1…

A: Given data: Battery Voltage (V) = 15 V Wire Diameter (D) = 1 mm = 1×10-3 m Power (P) = 10 W…

Q: Compute the equivalent resistance of the network in the given figure, and find the current in each…

A:

Q: Consider a portable electric blanket that runs on a 4.5 V battery. If you use copper wire with a…

A:

Q: Consider a resistor network connected to a 32.0-V battery as shown. The battery has negligible…

A: Answer:-  Given  Potential or emf(E) = 32.0 V  Equivalent Resistance (Req) = 6.40 ohm  Resistance…

Q: Consider an aluminum wire of diameter 0.600 mm and length 15.0 m. The resistivity of aluminum at…

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Q: Consider a portable electric blanket that runs on a 6 V battery. If you use copper wire with a 0.75…

A: Given data: Battery voltage (V) = 6 V Wire diameter (D) = 0.75 mm = 0.75×10-3 m Power (P) = 15 W The…

Q: Consider a portable electric blanket that runs on a 3 V battery. If you use copper wire with a 0.25…

A: solution is given as

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.