Copper has a charge density of 8.5 x 102º electrons per m, and a resistivity of 1.7 × 10¬8 N·m. The drift velocity of electrons in copper is 1.4 × 10¬4 m/s. Determine the voltage drop across 1.0m of copper wire.
Q: A copper wire (resistivity, ρ = 1.72×10−18 Ω m is 30 m long and has a diameter of 4.0×10−4 m. What…
A:
Q: Electric field through a copper wire is found to be 0.18 V/m. If the copper wire has 8.46x102…
A: Drift velocity is the average velocity at which electrons move through a conductor under the…
Q: An advanced lab student is studying the effect of temperature on the resistance of a current…
A: The solution is attached below. i= 3.404AExplanation:
Q: An unknown wire in a circuit has a circular cross-section with diameter 3.8 mm. It carries a current…
A: 1. The density of the charge carriers in a conductor or material is given by n = I /(A*vd*q) Here,…
Q: 5.0 cm length of a cylindrical copper wire has a radius of 0.01 mm. The resistivity of copper is…
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: An engineering intern is studying the effect of temperature on the resistance of a current carrying…
A: Consider the first case, initial temperature, T = 20 oC Final temperature, T1 = 54 oC Change in…
Q: A 5m long conductor with diameter of 5mm is connected to a source and an external resistance. The…
A: Resistivity is the reciprocal of conductivity. It is given as,
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: A special copper extension cord has length L = 5.25 m and rectangular cross-section given by…
A:
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: Consider a cylindrical ohmic wire with the following dimensions: length = 10.0 m, radius = 0.05 m.…
A:
Q: The resistivity of a 1.0 m long wire is 1.72 x 10-8pm and its cross sectional area is 2.0 X 10-6m2.…
A:
Q: copper wire is r = 2.19 cm in radius and 2.6 m in length, has a resistivity of 1.72x10^-8 Ω m, and…
A: Given: The radius of the wire is 2.19 cm. The length of the wire is 2.6 m. The resistivity of the…
Q: The density of mobile electrons in copper metal is 8.4 x 1028 m3. Suppose that / 4.7 x 1018…
A:
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: A copper wire of length L = 4000 meters has a uniform cross sectional area of A = 1.00 x 10-5 m2.…
A: Given: The length of the wire is 4000 m. The area of the wire is 1x10-5 m2. The length of the wire…
Q: A rod of semiconducting material of Length L=5 m and cross-sectional area A=3 mm2 lies along 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: total mass of copper= 0.9 g
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: A copper wire of cross-sectional area 1.00 mm2 has a current of 7.40 A flowing along its length.…
A: number density n = (1.3×density×NA )/molar mass n = (1.3×9000×6.02×1023 )/0.064 n = 1.1×1029
Q: A cylindrical conductor has resistance of R0 = 950 Ω. It has length L, radius of the cross section…
A: Resistance of the cylindrical conductor is Ro = 950 Ω Length of conductor = L Radius of…
Q: A 310-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,030…
A:
Q: The density of mobile electrons in copper metal is 8.4 x 1028 m3. Suppose that i = 7.2 x 10¹8…
A:
Q: When a current flows in an aluminum wire of diameter 2.83 mm, the drift speed of the conduction…
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: How long L is a tungsten wire if it has a diameter of 0.199 × 10-³ m and a resistance of 3.85 kQ?…
A:
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…
In given problem
resistivity of copper is = 1.7*10-8 ohm-meter
length of wire (L) =1 meter
cross-section area is (A)
Resistance of wire= resistivity* lenght/ area of cross-section = 1.7*10-8*1/A =1.7*10-8/A ohm
charge density of copper(n) = 8.5*1028 electrons/m3
charge of an electron = e= 1.6*10-19
drift velocity = 1.4*10-4m/sec
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- How long is a tungsten wire if it has a diameter of 0.195 x 10 m and a resistance of 3.33 k2? The resistivity of tungsten -3 is 5.62 x 10-8 Q-m. length of the wire: mA 340-km-long high-voltage transmission line 2.0 cm in diameter carries a steady current of 1,230 A. If the conductor is copper with a free charge density of 8.5 x 1028 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable? (Use 3.156 × 107 for the number of seconds in a year.) yrA copper wire has a length of 34.0 m and a resistance of 5.00 2 at 20.0°C. Assuming a circular cross-section, what is the wire's diameter (in mm)? The resistivity of copper at 20.0°C is 1.70 x 10-8 0 m. mm
- A 270-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,210 A. If the conductor is copper with a free charge density of 8.50 x 1028 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable? (Use 3.156 x 107 for the number of seconds in a year.) yrWhat is the change in a copper wire's resistivity when its temperature increases to 45°C from room temperature (20°C)? Po = 1.78 x 10-8 2•m a = 3.9 x 10-3 (1/°C)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?
- thanks!A copper wire of cross-sectional area 1.40 mm² has a current of 3.90 A flowing along its length. What is the drift speed of the conduction electrons? Assume 1.30 conduction electrons per copper atom. The mass density of copper is 9.00 g/cm³ and its molar mass is 64.0 g/mol. mm/sAn 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.) A
- A 290-km-long high-voltage transmission line 2.00 cm in diameter carries a steady current of 1,230 A. If the conductor is copper with a free charge density of 8.50 x 1028 electrons per cubic meter, how many years does it take one electron to travel the full length of the cable? (Use 3.156 x 107 for the number of seconds in a year.) yrBy what factor is the resistance of a copper wire changed when its temperature is increased from 20°C to 120°C? The temperature coefficient of resistivity for copper = 3.9 x 10^-3 (°C)^-1.Shown below is a copper wire with the following characteristics: Diameter: 1.45 mm.00145m 1.45 × 10-8 m Number density of electrons: 8.47 x 1028 electrons/m³. Conductivity: 5.96 x 107 S/m a. Calculate the drift velocity (magnitude and direction) of the electrons in the wire when a current of 5.00 A is running through it. b. What direction is the current moving? c. Remembering that current density is a vector, calculate the magnitude and direction of the current density of this wire. d. Calculate the resistivity of the wire. e. Calculate the resistance of this wire if it were 10.0 m in length.