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Charge 1. (10 points) What is the current through a conductor if X...
y=3.2 6. A resistor made out of Tungsten, (pw = 5.68 x 10-8 Nm andaw =...
y=3.2
6. A resistor made out of Tungsten, (pw = 5.68 x 10-8 Nm andaw = 0.0045 ()-1 at 20 °C) has a cross section diameter of 0.7 mm and a Length of Y m. a) (3 points) What is the resistance of this wire at 20 °C. b) (3 points) What is the current I when this resistor is connected to a 120 V power supply? c) (6 points) What will be the current if the resistance temperature is...
(ii) [10 marks] A bare conductor has the following specifications: • Circular cross section, radius of...
(ii) [10 marks] A bare conductor has the following specifications: • Circular cross section, radius of 10 mm. • Material is copper, electrical resistivity at 20°C: p=1.69x10-6 m . Temperature coefficient of resistivity is a = 0.0043 °C-? . Maximum allowable temperature is Os = 100°C • Ambient temperature: 0o = 25°C • Increase in effective AC resistance due to skin proximity effects = 5% • Heat dissipation rates: hconvection = 7.66 W/m2°C hradiation = 7.93 W/m2/°C. Determine the thermal...
If a conductor carries a steady current of 1 A, then the quantity of charge that...
If a conductor carries a steady current of 1 A, then the quantity of charge that flows through any cross section in 1 second is defined as a. 10 b.1A Oc.IN d. 1 T 3 points Saved A proton moving at a speed of 3.8 x 10m's cuts across the lines of a magnetic field at an angle of 70°. The strength of the field is 0.25 6. What is the magnitude of the force acting on the proton 2.5.1...
Please answer question (A-C) correctly showing work for thumbs up. A) The current in an electron...
Please answer question (A-C) correctly showing work for thumbs up. A) The current in an electron beam in a cathode-ray tube is measured to be 70 mA. How many electrons hit the screen in 20.0 s? (e= 1.6 x 10^ -19 C) a. 2.2 x 10^11 electrons b. 8.8 x 10^13 electrons c. 2.2 x 10^15 electrons d. 8.8 x 10^18 electrons B) If a metallic wire of cross sectional area 3.0 x 10^-6 m^2 carries a current of 3.0...
2) The number density of conduction electrons in silver is 5.86 x 1028 m-3. independent of...
2) The number density of conduction electrons in silver is 5.86 x 1028 m-3. independent of temperature. If a cylindrical wire of length L and cross-sectional area A were made of silver its electrical resistance would be given by R= ρ L A where ρ is the resistivity of the material measured in Ω−m. The resistivity can also be shown to be related to microscopic properties of the metal such as the number density of conduction electrons, the mass and...
*Please ignore the work that is already one the page.* THANK YOU! Carbon is in the...
*Please ignore the work that is already one the page.* THANK
YOU!
Carbon is in the semiconductor category of material and has a range of relativities. A resistor made of carbon has a resistivity of 60 times 10^-5 Ohm m. The resistor itself is 2 cm long and has a cross-section area of 4 mm^2. What current would flow thru this resistor if it has 120 V across it? A 60 W light bulb is powered by a connection to...
Consider the following (a) Find the current through the resistor in the figure above. (Take R...
Consider the following (a) Find the current through the resistor in the figure above. (Take R 8 2.) (b) If the resistor is made of carbon, what will its resistance be when its temperature is increased by 69.0 C°? (The temperature coefficient of resistivity for carbon is -5.0 x 10-4 (°c)-1.)
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire....
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 10.5 min? electrons (b) In what direction do the electrons travel with respect to the current? same direction opposite direction The magnitude is zero. Need Help? Read it Watch It 2. [-/10 Points) DETAILS SERCP11 17.4.P.010. An electric heater carries a current of 10.5 A when operating at a voltage...
A long wire cylindrical conductor having a radius of 5.00*10^-2 m carries a current of 10.0...
A long wire cylindrical conductor having a radius of 5.00*10^-2
m carries a current of 10.0 A uniformly distributed over its
cross-section and directed out of the page in the figure below.
10.0 A (out of page) What is the magnitude of the magnetic field at a point inside the cylindrical conductor, a distance of 2.50x10"-m from its center? (A) 2.00x10 T (B) 4.00x10 T C) 6.00x10 T (D) 8.00x10 T E) 1.00x10 T
5. Electromagnetic wave in a conductor (10 points) Assume that there is an electromagnetic wave in...
5. Electromagnetic wave in a conductor (10 points) Assume that there is an electromagnetic wave in a conductor with conductivity o, permit € and permeability u. It can be shown that the complex expression for the electrici Ē(2,t) = Ēoe-kzei(kz-wt) g where Eo is independent of x, y, z, t, (10) and --- + [v1 + (9* - )" (11) a) (4 points) Show that the associated magnetic field is: B(3,t) =***Ẽoe-v=ei(k=-ut); (12) b) (6 points) Assume that Eo is...
y=3.2
6. A resistor made out of Tungsten, (pw = 5.68 x 10-8 Nm andaw = 0.0045 ()-1 at 20 °C) has a cross section diameter of 0.7 mm and a Length of Y m. a) (3 points) What is the resistance of this wire at 20 °C. b) (3 points) What is the current I when this resistor is connected to a 120 V power supply? c) (6 points) What will be the current if the resistance temperature is...
(ii) [10 marks] A bare conductor has the following specifications: • Circular cross section, radius of 10 mm. • Material is copper, electrical resistivity at 20°C: p=1.69x10-6 m . Temperature coefficient of resistivity is a = 0.0043 °C-? . Maximum allowable temperature is Os = 100°C • Ambient temperature: 0o = 25°C • Increase in effective AC resistance due to skin proximity effects = 5% • Heat dissipation rates: hconvection = 7.66 W/m2°C hradiation = 7.93 W/m2/°C. Determine the thermal...
If a conductor carries a steady current of 1 A, then the quantity of charge that flows through any cross section in 1 second is defined as a. 10 b.1A Oc.IN d. 1 T 3 points Saved A proton moving at a speed of 3.8 x 10m's cuts across the lines of a magnetic field at an angle of 70°. The strength of the field is 0.25 6. What is the magnitude of the force acting on the proton 2.5.1...
*Please ignore the work that is already one the page.* THANK
YOU!
Carbon is in the semiconductor category of material and has a range of relativities. A resistor made of carbon has a resistivity of 60 times 10^-5 Ohm m. The resistor itself is 2 cm long and has a cross-section area of 4 mm^2. What current would flow thru this resistor if it has 120 V across it? A 60 W light bulb is powered by a connection to...
Consider the following (a) Find the current through the resistor in the figure above. (Take R 8 2.) (b) If the resistor is made of carbon, what will its resistance be when its temperature is increased by 69.0 C°? (The temperature coefficient of resistivity for carbon is -5.0 x 10-4 (°c)-1.)
1. [-/10 Points) DETAILS SERCP11 17.2.P.001. A current of 87.4 mA exists in a metal wire. (a) How many electrons flow past a given cross section of the wire in 10.5 min? electrons (b) In what direction do the electrons travel with respect to the current? same direction opposite direction The magnitude is zero. Need Help? Read it Watch It 2. [-/10 Points) DETAILS SERCP11 17.4.P.010. An electric heater carries a current of 10.5 A when operating at a voltage...
A long wire cylindrical conductor having a radius of 5.00*10^-2
m carries a current of 10.0 A uniformly distributed over its
cross-section and directed out of the page in the figure below.
10.0 A (out of page) What is the magnitude of the magnetic field at a point inside the cylindrical conductor, a distance of 2.50x10"-m from its center? (A) 2.00x10 T (B) 4.00x10 T C) 6.00x10 T (D) 8.00x10 T E) 1.00x10 T
5. Electromagnetic wave in a conductor (10 points) Assume that there is an electromagnetic wave in a conductor with conductivity o, permit € and permeability u. It can be shown that the complex expression for the electrici Ē(2,t) = Ēoe-kzei(kz-wt) g where Eo is independent of x, y, z, t, (10) and --- + [v1 + (9* - )" (11) a) (4 points) Show that the associated magnetic field is: B(3,t) =***Ẽoe-v=ei(k=-ut); (12) b) (6 points) Assume that Eo is...
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