Platinum is commonly used as a resistance thermometer since Platinum is relatively free from corrosive effects and has a high melting point. Suppose that at 20 oC the resistance of a Platinum wire is 164.2 Ω. When this wire is placed in a solution, the resistance of the wire becomes 187.4 Ω. What is the temperature of the solution? The temperature coefficient of resistivity of Platinum is α = 0.00393

Q: A gold resistance thermometer has a resistance Ro = 70.0Ω at To = 20°C. The temperature coefficient…

A: SOlution: given that  Ro = 70.0Ω To = 20°C Temperature coefficient of resistance is 3.4x10-3°C R…

Q: A toaster has a Nichrome (a=4.5×104 °C-) heating element that has a resistance of Ro= 80 2 at a…

A: The relation between the resistance and the temperature is given by, Here, R, Ro, T, To and α…

Q: A 1.3-m long copper wire (resistivity 1.68x108 Q-m) has a resistance of 7 Q. What is the diameter…

A:

Q: A length of aluminum wire has a resistance of 14.00 at 32.0°C. When the wire is warmed in an oven…

A:

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

A:

Q: Calculate the ratio of the resistance of 15.0 m of aluminum wire 2.3 mm in diameter, to 30.0 m of…

A: Given: Length of aluminum wire, La=15 m            Diameter of aluminum wire, d=2.3 mm…

Q: Two platinum wires (E & F) are found in a closet. Wire E has a resistance of RE. Wire F is 3 times…

A: The resistance of the wire E is .Wire F is 3 times shorter than wire E.The cross-sectional area of…

Q: Resistance depends on the size and shape of a conductor. We expect a long wire to have higher…

A: Ans:- Image-1

Q: A current of 65.9 mA flows through a resistor with a potential difference of  P=6.10 V across it.…

A:

Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

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Q: stivity is 10° Q.m at 20 n °C) of the material

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Q: What is the resistance of a 21-cm-long column of blood in a 0.80-cm- diameter femoral artery? The…

A:

Q: The resistance of a wire that is 105 cm long is 20.5 Q. After the temperature change, its resistance…

A: Information Given:- Length of the wire is l=105 cm Initial resistance of the wire is R0=20.5 Ω…

Q: Aluminum has a resistivity of 2.65 × 10-8 2 × m. What is the resistance of 15 m of aluminum wire…

A: We have given        Resistivity (Rho) = 2.65 × 10-8 ohm_meter And.             Length (l) = 15 m…

Q: At 20°C, the carbon resistor in an electric circuit connected to a 5.0-V battery has a resistance of…

A: The variation of resistance with temperature is given by,

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…

A:

Q: The temperature coefficient of resistance of a material is 0.05/°C. At 10°C, the resistance of a…

A:

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: A copper wire is having a length of 8m and a radius of 32mm. The resistivity (p) of copper is…

A:

Q: A copper wire has a resistance of 0.510 Ω at 20.0°C, and an iron wire has a resistance of 0.543 Ω at…

A: Resistance is directly proportional  to the temperature of a body. We will use the formula for the…

Q: A copper wire has a length of 2 meters and a cross-sectional area of 3×10^{−6} square meters. The…

A: To determine the resistivity of the wire, we need to use Ohm's Law, which states that the potential…

Q: Two conductors are made of the same material and have the same length. Conductor A is a solid wire…

A: Step 1:Step 2:Step 3:Step 4:

Q: 10. An aluminum wire (resistivity at 20°C of 2.65x10-8 2m, temperature coefficient of 0.00429/°C) is…

A:

Q: 3.0 A battery has an emf of 12 V and an internal resistance of 0.0500 2. What is the terminal…

A: Given : Emf (E) = 12 V Resistance (R) = 0.0500 Ω Current (I) = 8 A

Q: A silver wire has a resistance of 2.1 N at 27.5 °C, and a resistance of 2.7 N at 100 °C Determine…

A: Given data-Temperature, T1=27.50CResistance of the silver wire at T1, R1=2.1 ohmTemperature,…

Q: If the resistivity of a particular wire is 75.56x10-8 Ω⋅m, the wire is 48.16mm in length, and the…

A:

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: esistance depends on the size and shape of a conductor. We expect a long wire to have higher…

A: Given: ρ=12.08*10-8 Ωl = 14.22 mr = 1.33 m

Q: At 20°C, the carbon resistor in an electric circuit connected to a 3.5-V battery has a resistance of…

A:

Q: Problem 1. A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 41.O N at…

A: solution as

Q: The Resistance of a copper wire is 4.32 ohms when it is cross-sectional area is 4.68x10^-7 m². What…

A: Given data:  Resistance of copper wire (R) = 4.32 ohms Cross-sectional area (A) = 4.68 × 10-7 m2…

Q: At 20°C, a 7.5 m long copper wire has a cross-sectional diameter of 1 mm. What is the copper wire's…

A: initial temperature = t1= 20 degree centigrade final temperature = t2= 50 diameter = 2r = 1 mm

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

A: The voltage and current is given. So using ohm's law we can calculate the resistance by, V=IR R is…

Q: A platinum resistance thermometer (PRT) is a transducer which measures temperature 0 by means of…

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Q: Cell membranes contain channels that allow K+ ions to leak out. Consider a channel that has a…

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Q: An iron wire has a resistance of 78.7. m ohm at 20 degrees Celsius. When the wire carries a current,…

A: The temperature coefficient of resistance for iron is 0.0057 C-1 ...

Q: What is the resistance (in units of 0) of a wire made of a material with a resistivity of 3.2 x 10-8…

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Q: Resistance

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Q: You are working at a company that manufactures electrical wire. Gold is the most ductile of all…

A: Given: The mass of the gold is m = 1.00 g = 0.001 kg. The length of the gold wire is  L = 2.40 km =…

Q: Nichrome is an alloy used for making electric heater wires. A nichrome wire of diameter 0.50 mm is o…

A: Current electricity.

Q: A copper wire has a resistance of 15 Ω at some temperature. An aluminum wire has 3 times the length…

A:

Q: The resistance of a resistor at 8 degrees Celsius is given as 47 ohms. Determine the resistance, in…

A: Given Data: The initial resistance is, R = 47 Ω. The initial temperature is, T = 8 °C. The final…

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.