Electric field through a copper wire is found to be 0.18 V/m. If the copper wire has 8.46x102 electrons per m³ and a conductivity of 1.7×10 m, estimate the drift velocity of the electrons.
Q: current of I = 4.6 A is passing through a conductor with cross sectional area A = 3.5 × 10-4 m2. The…
A: Given Current I = 4.6 A Cross sectional area A =3.5 × 10-4 m2 Number density n =1.2 × 1027…
Q: Problem 1. A copper wire of cross-sectional area 2.5 mm2 carries a current with a current density of…
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Q: A copper wire of radius a = 0.161 mm has an aluminum jacket of outer radius b = 0.224 mm. There is a…
A: Data Given , Inner Radius of the wire ( a ) = 0.161 mm = 0.161 × 10-3 m Outer Radius of wire ( b )…
Q: An aluminum wire with a diameter of 0.115 mm has a uniform electric field of 0.295 V/m imposed along…
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A: The mean free path is the mean/average distance traveled by the particle before colliding with the…
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Q: A cylindrical copper conductor with temperature coefficient 4.3x10^-3 K^-1 at room temperature (20…
A: By creating a temperature difference between two quantities, a current can be generated.…
Q: A wire with a radius of 7.72mm is made of a conducting material that has an atomic mass of 49.4…
A: the formula that will be used here isI=neAvdA is area e is charge of electronvd is drift velocityI…
Q: The current density in a copper wire of diameter 1.02 mm is 1.75x10^5 A/m^2. The number of free…
A: Given that:-Current density, J=1.75×105 A/m2Diameter, D=1.02×10-3 mNo, of free electrons,…
Q: A copper wire with 4mm diameter, 2.0m length carries 6.0 ampere of current. Free electron density of…
A: Given, current passing through wire is, I = 6A length of wire, L = 2m free electron density, n = 8.5…
Q: When a current flows in an aluminum wire of diameter 4.57 mm, the drift speed of the conduction…
A: Given: Diameter, d=4.57 mm, radius r=4.75 mm2=2.285×10-3 m Drift speed ,vd=0.000291 m/s Conduction…
Q: Copper wire has a resistivity ρ = 1.7 × 10-8 Ω⋅m when at 20°C and it has a temperature coefficient α…
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Q: ong wire is made of a metal with the same electron density as copper. The wire ed across the…
A: L=1.5mV=9v
Q: A rod of semiconducting material of Length L=5 m and cross-sectional area A=3 mm2 lies along the…
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Q: A spool of copper wire 290 m long and with a diameter of 0.360 mm is at 20.0°C. For copper, the…
A: The wire's resistivity is, ρ=1.7×10-8 Ω The wire's length is, L=290 m The radius of wire is, r=0.360…
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: A wire with a radius of 2.22mm is made of a conducting material that has an atomic mass of 72.0…
A: Given radius of wire = R = 2.22 mm atomic mass = 72.0 grams/mole mass density = 6.17x103 kg/m3…
Q: When a current flows in an aluminum wire of diameter 2.83 mm, the drift speed of the conduction…
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Q: When a current flows in an aluminum wire of diameter 4.67 mm,4.67 mm, the drift speed of the…
A: Radius of the aluminium wire(r)=Diameter of the wire2=4.67×10-32=2.335×10-3mArea of the…
Q: Given the electric field through a write is 0.50 V/m. The material used to make the wire has…
A: The drift velocity of electrons is the average speed at which electrons move through a conductor…
Q: Copper wire has a resistivity p= 1.7 x 10-8 2-m when at 20°C and it has a temperature coefficient a…
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Q: Copper has a density of 8.96 x 10³ kg/m³ and a resistivity of 1.70 x 10-³0-m. a) On the basis of the…
A: The density of Copper is The resistivity is
Q: Find the drift velocity v₁ of conduction electrons in a gold wire of diameter 2.69 mm when a current…
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Q: A uniform cross-séction of šilver hås à resistivity of 1.54 × 10-8 2 m at room temperature. For an…
A: Resistivity ρ= 1.54×10-8 Ωm n=5.8*1028 E=1 v/m σ=1ρ=11.54×10-8 Ωm=6.49×107 Ω-1m-1 b. mobility,…
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- A copper wire of radius a = 0.273 mm has an aluminum jacket of outer radius b = 0.399 mm. There is a current i = 2.82 A in the composite wire. Take the resistivity for copper and aluminum to be 1.69 × 10-80-m and 2.75 × 10-8Q-m. Calculate the current in (a) the copper and (b) the aluminum. (c) If a potential difference V = 17.0 V between the ends maintains the current, what is the length in meters of the composite wire?An engineering intern is studying the effect of temperature on the resistance of a current carrying wire. She applies a voltage to a aluminum wire at a temperature of 59.0°C and notes that it produces a current of 1.40 A. If she then applies the same voltage to the same wire at -88.0°C, what current should she expect (in A)? The temperature coefficient of resistivity for aluminum is 3.90 x 10−³ (°C)-¹. (Assume that the reference temperature is 20°C.) ASilver at room temperature is found to have a resistivity of 1.59×108 №∙m. If the temperature is increased to 150°C what will be the resistivity of the silver?
- How many seconds will it take for 9.5 x 10¹² electrons (1.6 x 10^-19 C), take to pass through a conductor with a current of 120 ηA?A block in the shape of a rectangular solid has a cross-sectional area of 4.00 cm^2 across its width, a front-to-rear length of 5.00 cm, and a material conductivity of 10^6 Ω x m^-1. The block’s material contains 5.00x10^22 conduction electrons/m^3. A potential difference of 35.0 V is maintained between its front and rear faces. Find: (a) the resistivity of the block material(b) the resistance of the block(c) the current through the block(d) the magnitude of the current density if it is uniform(e) the drift velocity of the conduction electrons (f) the magnitude of the electric field through the blockThe drift speed in a copper wire is 7.15 x 105 m/s for a typical electron current. Calculate the magnitude of the electric field E inside the copper wire. The mobility of mobile electrons in copper is 4.5 x 10-3 (m/s)/(N/C). (Note that though the electric field in the wire is very small, it is adequate to push a sizable electron current through the copper wire.) i N/C eTextbook and Media
- A platinum resistance thermometer (PRT) is a transducer which measures temperature 0 by means of consequent change of electrical resistance RT between its two terminals. Such a PRT has the following quadratic characteristic: RT=Ro [1+A0+BO^2] The PRT is calibrated so that its resistance is Ro = 100 Q at a reference temperature of 0 = 0°C. The coefficients have the following values: A = +4.0 x 10-3 °C-1 B = -5.0 x 10-6 oc-2 Determine sensitivity of this transducer at temperatures of +50 °C. Select one: O a. 0.45 Q/°C Ob. -0.45 Q/°C -0.35 Ω/ΟC d. 0.4 0/°C O e. 0.35 Q/°C O f. -0.4 0/PCIron has a resistivity of 9.71×108 m at 20°C. What will the resistivity of Lead when then temperature is increased to 135°C. (Take a as 6.51×10³)What is the drift velocity in a 10.3 cm long section of wire that is carrying 624 Amps?
- In a 100-m-long conductor of cylindrical cross-section (radius ro = 5 mm), the axial current density is J = î2 A/m². The conductivity is o= 5.8-107 S/m. Find a) the current flowing through the conductor, b) the voltage across the entire length of the conductor, c) the overall resistance of the conductor.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 =A tungsten wire in a vacuum has length 26.0 cm and radius 6.00 mm. A potential difference is applied across it. (a) What is the resistance of the wire at 293 K? Ω (b) Suppose the wire reaches an equilibrium temperature such that it emits 70.0 W in the form of radiation. Neglecting absorption of any radiation from its environment, what is the temperature of the wire? (Note: e = 0.320 for tungsten.) K (c) What is the resistance of the wire at the temperature found in part (b)? Assume the temperature changes linearly over this temperature range. Ω. (d) What voltage drop is required across the wire? (e) Why are tungsten lightbulbs energetically inefficient as light sources?