I need help with 1.1-1.4 the class is EMag 1Homework Answers
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I need help with 1.1-1.4 the class is EMag 1
troblem 1: A conductor with 6...
1) The density of free electrons in gold is 5.90 x 1028 m-3. The resistivity of...
1) The density of free electrons in gold is 5.90 x 1028 m-3. The resistivity of gold is 2.44* x 10-80 m at a temperature of 20°C and the temperature coefficient of resistivity is 0.004 (°C)-1. A gold wire, 1.1 mm in diameter and 26 cm long, carries a current of 760 ma. The drift velocity of the electrons in the wire is closest to: A) 1.1 x 10-4 m/s B) 8.5 x 10-5 m/s 09 9.7 x 10-5 m/s...
SALEM STATE Department of Chemistry ) An ordinary fashlight uses tuo identical AA-batteries connected in series....
SALEM STATE Department of Chemistry ) An ordinary fashlight uses tuo identical AA-batteries connected in series. If each battery has a voltage of err tneglecting nternal resistance), and the bulb draws 0.504 when turned on, the resistance of the balb is: A) zero 13) 1.0 ? c) 2.0 ? D) 3.0 2 E) 4.02 (2) In problems 1, the power dissipated when the bulb turned on is: A) zero B) 10 W C)20 w D)3.0 W E) 40 W (3)...
my class needs help Exercise 2: Generating Electricity with a moving Bar Two going through them...
my class needs help
Exercise 2: Generating Electricity with a moving Bar Two going through them in resistance is R. A sliding metalic bar with no electrical resistance is made to move to the right ntol parallel conducting rails are placed a distance I apart with a magnetic field B to the paper. The rails are connected with a fixed wire whose electrical with a constant speed v (left side of diagram above) a. In order to be consistent with...
5.19 od of radius 1.5 cm in sistivities of copper and 5.11 A composite conductor 10...
5.19
od of radius 1.5 cm in sistivities of copper and 5.11 A composite conductor 10 m long consists of an inner core of steel of radi an outer sheath of copper whose thickness is 0.5 cm. Take the resistivities of steel as 1.77 X 10 and 11.8 X 10" . m, respectively. (a) Determine the resistance of the conductor (b) If the total current in the conductor is 60 A, what current flows in each metal? (c) Find the...
For this problem, you need to determine the magnetic field at the center of the large...
For this problem, you need to determine the magnetic field at the center of the large loop. The formula for that is B- Hol where R is the radius of the loop 2R A small circular loop of wire of radius 5.0 cm and resistance R = 1.7 x 10-3 Ω is centered inside a large circular loop of wire of radius 50 cm (see figure below). The larger loop which initially carries a clockwise current I- 6.4 A, is...
A long, cylindrical conductor of radius R carries a current I as shown in the figure...
A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The current density), however, is not uniform over the cross-section of the conductor but is a function of the radius according to ) = 2br2, where b is a constant. Find an expression for the magnetic field magnitude B at the following distances, measured from the axis. (Use the following variables as necessary: Mo, 11, 12, b, R.) (a) r1 <R B =...
6. A current of 3.5 pA flows through a copper wire. The diameter of the wire...
6. A current of 3.5 pA flows through a copper wire. The diameter of the wire is 30 mm. The number of charge carriers per unit volume is 1.7x10m. The electron drift speed is A) 4.6x1010 m/s B) 1.4x10 m/s C) 18x10 m/s D)5.7x10 m/s E) 1.4x10'm/'s 7· Three uniform cylindrical resistors are made of the same material and have the same length, but different diameters. They are connected in series as shown. We measure the voltage across point O...
#4 TEST 2, PHYS 1442. Instructor: Dr. G. Kolmakov Student Name Date: 5/1/2018 Notes: 1. Show...
#4
TEST 2, PHYS 1442. Instructor: Dr. G. Kolmakov Student Name Date: 5/1/2018 Notes: 1. Show equations you use and show your work. Answers without work shown will not be given any credit. 2. Box the final answers. 3. Show units in the answers. 4. Maximum point for the test is 100. 1. (10 points) What is the resistance of a 35-meter long wire that has a diameter of 0.812*10- m and is made of copper? The resistivity of copper...
question 2,7,9 please Charge 1. (10 points) What is the current through a conductor if X...
question 2,7,9 please
Charge 1. (10 points) What is the current through a conductor if X electrons pass through a cross section in Y time? 2. (10 points) The current flowing through a conductor is X. If it flows for Y time, how many electrons is that X = 100 microamps, Y = 2 days 3. (10 points) A current XuA flows and Y electrons are transported. How long did it take? Resistivity 4. (10 points) An object is round...
I was able to get 4 but need help getting 5 14-5] The solenoid used in...
I
was able to get 4 but need help getting 5
14-5] The solenoid used in an MRI scanner is 2 m long and 90 cm in diameter. It is wound from a copper wire 1.4 mm in diameter, with adjacent turns separated by an insulating layer of varnish with negligible thickness. See example 26.10 of your textbook. 4. Find the current that will produce a 0.5 5. Find the voltage that needs to be applied to generate this current....
1) The density of free electrons in gold is 5.90 x 1028 m-3. The resistivity of gold is 2.44* x 10-80 m at a temperature of 20°C and the temperature coefficient of resistivity is 0.004 (°C)-1. A gold wire, 1.1 mm in diameter and 26 cm long, carries a current of 760 ma. The drift velocity of the electrons in the wire is closest to: A) 1.1 x 10-4 m/s B) 8.5 x 10-5 m/s 09 9.7 x 10-5 m/s...
SALEM STATE Department of Chemistry ) An ordinary fashlight uses tuo identical AA-batteries connected in series. If each battery has a voltage of err tneglecting nternal resistance), and the bulb draws 0.504 when turned on, the resistance of the balb is: A) zero 13) 1.0 ? c) 2.0 ? D) 3.0 2 E) 4.02 (2) In problems 1, the power dissipated when the bulb turned on is: A) zero B) 10 W C)20 w D)3.0 W E) 40 W (3)...
my class needs help
Exercise 2: Generating Electricity with a moving Bar Two going through them in resistance is R. A sliding metalic bar with no electrical resistance is made to move to the right ntol parallel conducting rails are placed a distance I apart with a magnetic field B to the paper. The rails are connected with a fixed wire whose electrical with a constant speed v (left side of diagram above) a. In order to be consistent with...
5.19
od of radius 1.5 cm in sistivities of copper and 5.11 A composite conductor 10 m long consists of an inner core of steel of radi an outer sheath of copper whose thickness is 0.5 cm. Take the resistivities of steel as 1.77 X 10 and 11.8 X 10" . m, respectively. (a) Determine the resistance of the conductor (b) If the total current in the conductor is 60 A, what current flows in each metal? (c) Find the...
For this problem, you need to determine the magnetic field at the center of the large loop. The formula for that is B- Hol where R is the radius of the loop 2R A small circular loop of wire of radius 5.0 cm and resistance R = 1.7 x 10-3 Ω is centered inside a large circular loop of wire of radius 50 cm (see figure below). The larger loop which initially carries a clockwise current I- 6.4 A, is...
A long, cylindrical conductor of radius R carries a current I as shown in the figure below. The current density), however, is not uniform over the cross-section of the conductor but is a function of the radius according to ) = 2br2, where b is a constant. Find an expression for the magnetic field magnitude B at the following distances, measured from the axis. (Use the following variables as necessary: Mo, 11, 12, b, R.) (a) r1 <R B =...
6. A current of 3.5 pA flows through a copper wire. The diameter of the wire is 30 mm. The number of charge carriers per unit volume is 1.7x10m. The electron drift speed is A) 4.6x1010 m/s B) 1.4x10 m/s C) 18x10 m/s D)5.7x10 m/s E) 1.4x10'm/'s 7· Three uniform cylindrical resistors are made of the same material and have the same length, but different diameters. They are connected in series as shown. We measure the voltage across point O...
#4
TEST 2, PHYS 1442. Instructor: Dr. G. Kolmakov Student Name Date: 5/1/2018 Notes: 1. Show equations you use and show your work. Answers without work shown will not be given any credit. 2. Box the final answers. 3. Show units in the answers. 4. Maximum point for the test is 100. 1. (10 points) What is the resistance of a 35-meter long wire that has a diameter of 0.812*10- m and is made of copper? The resistivity of copper...
question 2,7,9 please
Charge 1. (10 points) What is the current through a conductor if X electrons pass through a cross section in Y time? 2. (10 points) The current flowing through a conductor is X. If it flows for Y time, how many electrons is that X = 100 microamps, Y = 2 days 3. (10 points) A current XuA flows and Y electrons are transported. How long did it take? Resistivity 4. (10 points) An object is round...
I
was able to get 4 but need help getting 5
14-5] The solenoid used in an MRI scanner is 2 m long and 90 cm in diameter. It is wound from a copper wire 1.4 mm in diameter, with adjacent turns separated by an insulating layer of varnish with negligible thickness. See example 26.10 of your textbook. 4. Find the current that will produce a 0.5 5. Find the voltage that needs to be applied to generate this current....
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