A resistance thermometer using a platinum wire is used to measure the temperature of a liquid. The resistance is 2.42 ohms at 0oC, and when immersed in the liquid it is 2.98 ohms. The temperature coefficient of resistivity of platinum is 0.0038/oC. What is the temperature of the liquid?

Q: A platinum resistance thermometer has a resistance of 50 Ω at 20ºC. The thermometer is immersed in a…

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Q: A 14-gauge copper wire has a cross-section area of 2.081 mm². The resistivity of copper at 20…

A: The initial (20oC) resistance is, R1=ρLA=1.7×10-8 Ωm100 m2.081 mm210-6 m21 mm2=0.817 Ω

Q: The resistance of a copper wire at 7⁰C is 50 mΩ. If the temperature coefficient of copper at 0⁰C is…

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Q: storage battery of a car has an emf of 12 V. If the internal resistance of the battery is 0.4 Ω,…

A: In the given question, EMF of the battery E = 12 V Internal resistance R = 0.4 Ω The amount of…

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

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Q: Consider a portion of a cell membrane that has a thickness of 7.50 nm and 1.9 um x 1.9 um in area. A…

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Q: A rod (length = 40 cm) with a rectangular cross section (1.5 mm X2.0 mm) has a resistance of 0.20 .…

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Q: 1. Wire C and wire D are made from different materials and have length Lc = LD = 0.9 m. The…

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Q: A 60 W lightbulb has a resistance of 240 Ω. At the operating temperature of the tungsten filament,…

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Q: A silver wire with a circular cross-section has a mass of 1.45 g and a resistance of 0.790 Ω. At…

A: Mass (m) = 1.45 g = 0.00145 kg Resistance (R) = 0.79 ohm Temperature (T) = 20o C Resistivity of…

Q: Some states allow the use of aluminum wire in houses in place of copper.  If you wanted the…

A: Aluminum is more resistive than copper, hence it is required bigger Aluminum wire to allow same…

Q: The graph below represents the relationship between the resistance and the length of a wire of a…

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Q: The emf of a battery is 12.0 volts. When the battery delivers a current of 0.500 ampere to a load,…

A: Given data: The emf of battery is ε=12.0 V. The current delivered to load is I=0.5 A. The potential…

Q: An iron wire has a diameter 9.5 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: Given that resistivity ρ =9.71 ×10-8 ohm. m diameter of the wire = 9.5 mm =9.5 ×10-3m Resistance of…

Q: An appliance contains a copper wire. When the appliance is not in use, the wire has a resistance of…

A: 5.C We have been provided with an appliance contains a copper wire.When the appliance is not in use,…

Q: A wire with resistivity 1.8 x 10-7 Ω m has a resistance of 0.45 Ω and a length of 2.0 m. What is the…

A: Given data: The given resistivity of wire is = 1.8×10-7 ohm-m The value of resistance is R = 0.45…

Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: total mass of copper= 0.9 g

Q: An iron wire has a diameter 6.4 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

A: The resistivity of a wire is the measure of how good a material is a resistor and is calculated by…

Q: A bar (length = 80 cm) with a cross section of (1.5 mm × × 2.0 mm) has a resistance of 0.20 Ω Ω .…

A: The length of the bar is l = 80 cm. The cross sectional area of the bar is A = (1.5mm x 2.0 mm) = 3…

Q: As part of a class project you are given 0.900 g of copper and asked to fabricate a wire with…

A: Mass of copper (m) = 0.9 g Density of copper (D) = 8920 kgm3Resistivity of copper (ρ) = 1.72×10-8…

Q: A 4.0 m length of gold wire is connected to a 1.5 V battery, and a current of 4.0 mA flows through…

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Q: What is the resistance of copper wier that is 3.5m long and has a diameter of 2mm (p=1.68x10-80.m)…

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Q: As part of a class project you are given 0.900 g of nichrome and asked to fabricate a wire with…

A: the resistivity of nichrome is 1.00  10-6 Ω · m density of nichrome is 8.31  103 kg/m3

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: An iron wire is used to determine the melting point of material X. The resistance of the iron wire…

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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: 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: As part of a class project you are given 0.900 g of Nichrome and asked to fabricate a wire with…

A: Mass of wire = 0.9 g Percentage of nichrome used = 95%Therefore, mass of nichrome used = 0.95×0.90…

Q: An aluminum rod has a resistance of 1.585 Q at 23.0°C. Calculate the resistance of the rod at…

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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: When a 1.0m length of metal wire is connected to a 1.5 V battery, a current of 8 mA flows through…

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Q: A wire (length = 2.0 m, diameter = 1.0 mm) has a resistance of 0.9 N. What is the resistivity of the…

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Q: What is the current I through the conductor at time 5.0 seconds?

A: Given, Aluminium 12 gauge wire diameter of the wire=0.205cm resistivity ρ=2.75×108 ohm mElectric…

Q: A gold wire with a circular cross-section has a mass of 1.30 g and a resistance of 0.770 Ω. At 20°C,…

A: Given data: Mass of the gold wire is, m= 1.30 g The resistance of the gold wire is, R = 0.770 Ω The…

Q: 3.(0) A battery has an emf of 1.5 V and an internal resistance of 0.0200 2. What is the terminal…

A: Given, I=1 AR=0.02 ΩE=1.5 volts Hence, voltage drop (V) across battery is given by:-…

Q: A wire of diameter 0.650 mm and length 60.0 m has a measured resistance of 2.40 Ω. What is the…

A: Resistivity of the wire ρ=RAl=Rlπd24

Q: An iron wire has a diameter 0.85 mm and resistivity 9.71x 10-8 Qm. What will be the length of this…

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Q: A gold wire with a circular cross-section has a mass of 1.50 g and a resistance of 0.690 N. At 20°C,…

A: The resistance of a conductor is directly proportional to its length and inversely proportional to…

Q: The power dissipated by a resistor with a resistance of R = 100 Q is P = 2.0 W. What are the current…

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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: Assuming that you wish to make a uniform wire out of 2 grams of copper. If the wire is to have a…

A: Given: The mass of copper is m=2 g. The resistance of wire is R= 0.75 Ω. The density of copper…

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

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Q: A lab technician is studying the effect of temperature on the resistance of a current carrying wire.…

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Q: You have a 100 meter long hollow square copper wire that has a side length of 5mm. The diameter of…

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Q: A length of aluminum wire is connected to a precision 10.00-VV power supply, and a current of 0.4132…

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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.