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4. The electrical conductivity of copper at roon temperature s 5.96 × 107 Ω-1m 1. Evaluate...
Material ρ (Ω•m) at 20 °C Resistivity σ (S/m) at 20 °C Conductivity Copper 1.68×10−8 5.96×107
Material
ρ (Ω•m) at 20 °C
Resistivity
σ (S/m) at 20 °C
Conductivity
Copper
1.68×10−8
5.96×107
Given the parallel plate shown below: (a) Calculate the TEM mode circuit parameters (L',C', R', and G') step-by-step and compare your derivation to the answer given in Table 2 of Ludwig. Hint: Do this calculation carefully since a problem of this nature may show up on an exam with a different geometry (b) Now calculate these parameters for a copper-plate transmission line operating at...
You have a piece of copper (conductivity = 6.0*10^7 Ω^-1m^-1) wire 26 cm long and 2.0 mm in diameter and a bar magnet with a magnetic dipole moment of 0.75 Am^2. You decide you’re going to make use of...
You have a piece of copper (conductivity = 6.0*10^7 Ω^-1m^-1) wire 26 cm long and 2.0 mm in diameter and a bar magnet with a magnetic dipole moment of 0.75 Am^2. You decide you’re going to make use of induction to make some current flow in the wire. First, you pull the copper wire into a circular loop. Then you hold the bar magnet 15 cm above the center of the loop, parallel to the loop so that there is...
a. (2 pts.) The film temperature, used to evaluate properties, for internal flow is the average...
a. (2 pts.) The film temperature, used to evaluate properties, for internal flow is the average of the surface temperature and the external free stream fluid temperature. True or False. 1. b. (2 pts.) The local convection coefficient, h, around the circumference of a cylinder in cross flow is constant (it does not vary with position as you travel around the cylinder.) True or False c. (2 pts.) For internal fully developed flow the convection coefficient, h, decreases as the...
Problem 7.036 A long, cylindrical, electrical heating element of diameter D 10 mm, thermal conductivity k240...
Problem 7.036 A long, cylindrical, electrical heating element of diameter D 10 mm, thermal conductivity k240 W/m- K, density p 2700 kg/m, and specific heat c900 J/kg K is installed in a duct for which air moves in cross flow over the heater at a temperature and velocity of 27°C and 20 m/s, respectively (a) Neglecting radiation, estimate the steady-state surface temperature when, per unit length of the heater, electrical energy is being dissipated at a rate of 1000 W/m....
How to do these two problems 3. -1 points OSColPhys2016 20.1.WA.008 My Notes Consider a copper...
How to do these two
problems
3. -1 points OSColPhys2016 20.1.WA.008 My Notes Consider a copper wire with a diameter of 2.51 mm. (a) What is the drift speed of the electrons in the copper wire when a current of 11.0 A flows through it? Assume that each copper atom contributes one free electron to the metal. The density of copper is 8.92 g/cm3 m/s (b) How does this drift speed compare to the random rms speed of an electron...
Please show claer solve for ( a,c,d,e ) of this qustion. mm, electrical resistance per unit...
Please show claer solve for ( a,c,d,e ) of this qustion.
mm, electrical resistance per unit length An electrical transmission line (diameter: D=5 r=0.002 Ω/m) carries an electric current (1-100 A), dissipating an electrical power per unit length inr. On a windy day, the line is subjected to air flow (air temperature: T. -10C, air velocity V 50 km/hr) T, 10°C V 50 km/hr T, =? 1 -100 A air elec electrical line We would like to determine the surface...
4) 74 kJ are required to heat 1 cup of water fronm room temperature to boiling....
4) 74 kJ are required to heat 1 cup of water from room temperature to boiling. The wavelength of microwave radiation in a microwave oven is 2.3 x 10-3 m. How many moles of photons are required? 5) Cesium requires a minimum energy of 188 kJ/mol for an electron to be ejected. What is the wavelength of light in nm that possesses the minimum amount of energy needed to cause the electron to eject? 5.4 Balmer-Rydberg 6) Use the Balmer-Rydberg equation to calculate...
Question 3 please Physics 107 Homework 8 (Chapter 9, Statistical Physics) (Room Temperature - 300 )...
Question 3 please
Physics 107 Homework 8 (Chapter 9, Statistical Physics) (Room Temperature - 300 ) la. Find the average translational kinetic energy of a Helium atom in thermal equilibrium, at room temperature, in eV. b. Find the average translational kinetic energy of a 1 kg octopus in thermal equilibrium, at room temperature, in eV. c. Find the mean speed of an He atom in thermal equilibrium, at room temperature. d. Find the mean speed of a 1 kg octopus...
Consider a photoelectric effect experiment. Calculate the minimum photon energy needed to produce photoelectrons for the...
Consider a photoelectric effect experiment. Calculate the minimum photon energy needed to produce photoelectrons for the following metals: Sodium Aluminum Platinum For the photon energies you calculated in problem #1, calculate the wavelength and frequency for each. In what part of the electromagnetic spectrum do these photons belong? Calculate the radii and energies of the first three allowed orbits for the Bohr Model of the hydrogen atom in both joules and electron-volts. Show your work. Calculate the energies of photons...
need help with number 4 and 5 please! Two, cm diameter circular metal plates have 0.10...
need help with number 4 and 5 please!
Two, cm diameter circular metal plates have 0.10 mm thick mica disk (dielectric constant 54) between them. What oss the capacitance of the structure. Also, how many a 10 a resistor for 1.5 min. How many electrons enter the resistor electrons leave the resistor? Copper has mass density of 86 glam a copper wire, is one electron available per n there Q) copper atom to carry electrical current. What is the concentration...
Material
ρ (Ω•m) at 20 °C
Resistivity
σ (S/m) at 20 °C
Conductivity
Copper
1.68×10−8
5.96×107
Given the parallel plate shown below: (a) Calculate the TEM mode circuit parameters (L',C', R', and G') step-by-step and compare your derivation to the answer given in Table 2 of Ludwig. Hint: Do this calculation carefully since a problem of this nature may show up on an exam with a different geometry (b) Now calculate these parameters for a copper-plate transmission line operating at...
a. (2 pts.) The film temperature, used to evaluate properties, for internal flow is the average of the surface temperature and the external free stream fluid temperature. True or False. 1. b. (2 pts.) The local convection coefficient, h, around the circumference of a cylinder in cross flow is constant (it does not vary with position as you travel around the cylinder.) True or False c. (2 pts.) For internal fully developed flow the convection coefficient, h, decreases as the...
Problem 7.036 A long, cylindrical, electrical heating element of diameter D 10 mm, thermal conductivity k240 W/m- K, density p 2700 kg/m, and specific heat c900 J/kg K is installed in a duct for which air moves in cross flow over the heater at a temperature and velocity of 27°C and 20 m/s, respectively (a) Neglecting radiation, estimate the steady-state surface temperature when, per unit length of the heater, electrical energy is being dissipated at a rate of 1000 W/m....
How to do these two
problems
3. -1 points OSColPhys2016 20.1.WA.008 My Notes Consider a copper wire with a diameter of 2.51 mm. (a) What is the drift speed of the electrons in the copper wire when a current of 11.0 A flows through it? Assume that each copper atom contributes one free electron to the metal. The density of copper is 8.92 g/cm3 m/s (b) How does this drift speed compare to the random rms speed of an electron...
Please show claer solve for ( a,c,d,e ) of this qustion.
mm, electrical resistance per unit length An electrical transmission line (diameter: D=5 r=0.002 Ω/m) carries an electric current (1-100 A), dissipating an electrical power per unit length inr. On a windy day, the line is subjected to air flow (air temperature: T. -10C, air velocity V 50 km/hr) T, 10°C V 50 km/hr T, =? 1 -100 A air elec electrical line We would like to determine the surface...
Question 3 please
Physics 107 Homework 8 (Chapter 9, Statistical Physics) (Room Temperature - 300 ) la. Find the average translational kinetic energy of a Helium atom in thermal equilibrium, at room temperature, in eV. b. Find the average translational kinetic energy of a 1 kg octopus in thermal equilibrium, at room temperature, in eV. c. Find the mean speed of an He atom in thermal equilibrium, at room temperature. d. Find the mean speed of a 1 kg octopus...
Consider a photoelectric effect experiment. Calculate the minimum photon energy needed to produce photoelectrons for the following metals: Sodium Aluminum Platinum For the photon energies you calculated in problem #1, calculate the wavelength and frequency for each. In what part of the electromagnetic spectrum do these photons belong? Calculate the radii and energies of the first three allowed orbits for the Bohr Model of the hydrogen atom in both joules and electron-volts. Show your work. Calculate the energies of photons...
need help with number 4 and 5 please!
Two, cm diameter circular metal plates have 0.10 mm thick mica disk (dielectric constant 54) between them. What oss the capacitance of the structure. Also, how many a 10 a resistor for 1.5 min. How many electrons enter the resistor electrons leave the resistor? Copper has mass density of 86 glam a copper wire, is one electron available per n there Q) copper atom to carry electrical current. What is the concentration...
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