A new material is found to be superconducting below 77 K. How much resistance will a 75 mm long sample of this material have if it is at a temperature of 69.3 K while connected to a 6.4 V AC-power supply? R =       How much thermal energy will it generate? Thermal energy generated =

Q: 1. What current flows through a 2.54 cm diameter rod of pure silicon that is 20.0 cm long, when 1.00…

A: Bartleby's guidelines allowing answer only the first question

Q: The resistivity of a metal wire is 10 x 10-8 across the wire is 10 V. Qm at 20°C. Calculate the…

A: Given,

Q: The resistance of the tungsten filament of an incandescent light bulb at 24 degC is 32 Ohms. If the…

A: Given:The resistance of the tungsten filament at T1=20°CResistance,R1=32ΩVoltage,V= 130…

Q: A wire 3.00 m long and 0.450 mm2 in cross-sectional area has a resistance of 38.8 Q at 20.0°C. If…

A: Find the temperature coefficient of resistivity. R=R01+αT-T0RR0=1+αT-T0RR0-1=αT-T0α=RR0-1T-T0

Q: The density of free electrons in gold is 5.9 ×10-8 m¯³. If a gold wire with diameter d= 5.0 mm…

A: As per guidelines, we will solve only one question for you. If you need any particular question,…

Q: 1. What current flows through a 0.50 mm diameter wire of Platinum that is 80.0 cm long, when 12 V is…

A:

Q: =9634 Given that the delivered power to a resistor is equal to P when the current flowing in the…

A: solution given as

Q: busbar made out of copper has a length of 12 inches. Its surface dimension is 1 cm by 1 cm. If the…

A: Given values:-  Length of copper,(L)=12 inch=12 x 0.0254 m=0.3048 m ----(1) [Using 1 inch=0.0254 m]…

Q: 2. a) The resistivity of copper is 1.7241 x 10-8 (-m) at 20°C. What is the conductivity of copper at…

A:

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: lông L tungster re if it has a diam 0.137 × 10-3 m and a resistance of 3.41 k2? The resistivity of…

A: GivenDiameter of wire (d)=0.137×10-3 mResistance(R)=3.41×103 ohm  Resistivity of Tungsten…

Q: Current has a heating effect due to the law of conservation of energy. A sealed container containing…

A: If I is the current and V is the voltage ,the heat energy produced in t second due to the current…

Q: The resistivity of certain metals becomes zero at :Select one а. О b. Very low temperatures .c Very…

A: From question: A metal's resistivity is a function of temperature; it rises as the temperature…

Q: The resistance of the tungsten filament of an incandescent light bulb at 22 degC is 34 Ohms. If the…

A: Given, R0=34 ohms at 220 CVoltage V =126 Vand current I =0.36 A

Q: A copper wire is 10 cm long and has a cross-sectional area of 0.4 mm^2 and the resistance of the…

A:

Q: Silver at room temperature is found to have a resistivity of 1.59×108 №∙m. If the temperature i…

A: The resistivity which determines the resistance of a material to the flow of electric current will…

Q: The resistivity of gold at room temperature is 2.35 x 10-8 ohm-m. The temperature coefficient alpha…

A:

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

A:

Q: 3. For carbon; P20°c = 3.5 x 10-50-m and a = -5.0 x 10-4/°C. a) At what temperature does a carbon…

A:

Q: How long is a tungsten wire if it has a diameter of 0.109 x 10^-3 m and a resistasnce of 3.49…

A: The length of the tungsten wire is 579.47 m.Explanation:Step 1: Identify the given in the…

Q: Shown below is a copper wire with the following characteristics: Diameter: 1.45 mm.00145m 1.45 ×…

A:

Q: A thermometer made of Platinum has a resistance of 50 2 at 20 C, what is the measured temperature…

A:

Q: How long L is a tungsten wire if it has a diameter of 0.173 x 10- m and a resistance of 2.77 k? The…

A: Given that:- The diameter of the tungsten wire is d = 0.173 x 10-3 m. The resistance of the…

Q: Q6/ A length of copper wire with a cross sectional area of 1 mm2 carries a current of 0.4 A. The…

A: Mobility μ is defined as the magnitude of drift velocity per unit electric field.

Q: In an experiment, the current through a wire is 0.20O A and the voltage across the wire is 0.800 V.…

A: The voltage across the wire is equal to the product of current and resistance.

Q: 3. Look up tabulated conductivities (or resistivities) of copper, silver, and aluminum at 20 °C and…

A: The resistance for a given length of a conducting wire is given in terms of its resistivity as…

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: If the resistivity of copper is less than that of gold at room temperature, which of the following…

A: The objective of the question is to understand the implications of resistivity in different…

Q: 1. What current flows through a 0.50 mm diameter rod of annealed Copper that is 90.0 cm long, when…

A: Using Ohms lawV = I R   we find current  and using R = ρ L/A   we find resistance

Q: A cylindrical silicon rod is 1.0 cm long and has a cross-sectional radius of 2.0 mm. What is the…

A: The length of the silicon rod is 1.0 cm. The cross-sectional radius of the rod is 2.0 mm. The…

Q: Qʻ: Calculate the drift velocity and mean free path of copper when it carries a steady current of 10…

A: Given: The current carried by the copper wire is I = 10 A The radius of the copper wire is r = 0.08…

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.