A length of metal wire has a radius of 0.002 m and a resistance of 0.1...
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length of metal wire has a radius of 0.002 m and a resistance of
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A copper wire has cross section area 0.002 m' and length of 400 m, what is...
A copper wire has cross section area 0.002 m' and length of 400 m, what is the resistance of this copper wire? When a 200-V potential difference is applied over the wire, what is the current through the wire and what is the electric power? If the current is uniformly distributed, what is the current density? If the drift speed is 10 m/s, what is the number density of electrons in the wire? (Given copper's resistivity as 2x10 s2 m)....
005 10.0 points Birds resting on high-voltage power lines are a common sight. The copper wire...
005 10.0 points Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands is 2.78 cm in diameter and carries a current of 58 A If the bird's feet are 7.66 cm apart, what is the potential difference across its body? Copper's resistivity is 1.68 x 10 S2m. Answer in units of uV. 006 10.0 points A length of metal wire has a radius of 0.001 m and a resistance of 0.09...
A 2.5 g wire has a density of 15.4 g/cm3 and a resistivity of 1.22 ×...
A 2.5 g wire has a density of 15.4 g/cm3 and a resistivity of 1.22 × 10−7 Ω · m . The wire has a resistance of 106 Ω . How long is the wire? Answer in units of m. The wire is made up of atoms with molecular mass 22 g/mol. What is the drift speed of the electrons when there is a voltage drop of 201.4 V across the wire? Assume there is one conduction electron per atom....
Physics with Cal 2 A copper wire has radius of 0.2 cm and length of 400n...
Physics with Cal 2
A copper wire has radius of 0.2 cm and length of 400n m, what is the resistance of this copper wire? When a 200-V potential difference is applied over the wire, what is the current through the wire and what is the electric power? If the current is uniformly distributed, what is the current density? If the drift speed is 10 m/s, what is the number density of electrons in the wire? (Given copper's resistivity as...
You have a piece of copper wire of length L = 15.0 cm and radius R...
You have a piece of copper wire of length L = 15.0 cm and radius R = 0.5 mm. Given that the resistivity of copper is 1.68 X 10^-8 Ohm*m, what is: a. The resistance of your piece of wire? b. If a current of i = 0.5 mA is set up in the wire, what is the magnitude of the current density of the wire? c. With a current of i = 0.5 mA, what is the change in...
A wire of initial length Ly and radius to has a measured resistance of 2 Ohms....
A wire of initial length Ly and radius to has a measured resistance of 2 Ohms. The wire is drawn under tensile stress to a new uniform radius of r-0270 What is the new resistance of the wire? Hint: Assume the radius and the length of the wire can change. 1.250 Ohms 1875 Ohms 69444 Ohms 3,375 Ohms None of the above
A wire of initial length L0 and radius r0 has a measured resistance of 2 Ohms....
A wire of initial length L0 and radius r0 has a measured resistance of 2 Ohms. The wire is drawn under tensile stress to a new uniform radius of r = 0.2r0. What is the new resistance of the wire? Assume the radius and the length of the wire can change (Assume the radius and the length of the wire can change) 3375 Ohms 69444Ohms 1875Ohms 1250Ohms
Need help with these A current of 75.7 mA exists in a metal wire. How many...
Need help with these
A current of 75.7 mA exists in a metal wire. How many electrons flow past a given cross-section of the wire in 9.4 min? The fundamental charge is 1.602 Times 10^-19 C. Birds resting on high-voltage power lines are a common sight. A certain copper power line carries a current of 122 A, and its resistance per unit length is 2.39 Times 10^-5 1 Ohm/m. If a bird is standing on this line with its feet...
a.) A 33.9-m length of copper wire at 20.0°C has a radius of 0.31 mm. If...
a.) A 33.9-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 7.00 V is applied across the length of the wire, determine the current in the wire. b.) If the wire is heated to 40.0°C while the 7.00-V potential difference is maintained, what is the resulting current in the wire?
(a) A 35.3-m length of copper wire at 20.0°C has a radius of 0.31 mm. If...
(a) A 35.3-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in this table.) 1.48 A (b) If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire?
A copper wire has cross section area 0.002 m' and length of 400 m, what is the resistance of this copper wire? When a 200-V potential difference is applied over the wire, what is the current through the wire and what is the electric power? If the current is uniformly distributed, what is the current density? If the drift speed is 10 m/s, what is the number density of electrons in the wire? (Given copper's resistivity as 2x10 s2 m)....
005 10.0 points Birds resting on high-voltage power lines are a common sight. The copper wire on which a bird stands is 2.78 cm in diameter and carries a current of 58 A If the bird's feet are 7.66 cm apart, what is the potential difference across its body? Copper's resistivity is 1.68 x 10 S2m. Answer in units of uV. 006 10.0 points A length of metal wire has a radius of 0.001 m and a resistance of 0.09...
Physics with Cal 2
A copper wire has radius of 0.2 cm and length of 400n m, what is the resistance of this copper wire? When a 200-V potential difference is applied over the wire, what is the current through the wire and what is the electric power? If the current is uniformly distributed, what is the current density? If the drift speed is 10 m/s, what is the number density of electrons in the wire? (Given copper's resistivity as...
A wire of initial length Ly and radius to has a measured resistance of 2 Ohms. The wire is drawn under tensile stress to a new uniform radius of r-0270 What is the new resistance of the wire? Hint: Assume the radius and the length of the wire can change. 1.250 Ohms 1875 Ohms 69444 Ohms 3,375 Ohms None of the above
Need help with these
A current of 75.7 mA exists in a metal wire. How many electrons flow past a given cross-section of the wire in 9.4 min? The fundamental charge is 1.602 Times 10^-19 C. Birds resting on high-voltage power lines are a common sight. A certain copper power line carries a current of 122 A, and its resistance per unit length is 2.39 Times 10^-5 1 Ohm/m. If a bird is standing on this line with its feet...
(a) A 35.3-m length of copper wire at 20.0°C has a radius of 0.31 mm. If a potential difference of 7.0 V is applied across the length of the wire, determine the current in the wire. (Use the values in this table.) 1.48 A (b) If the wire is heated to 40.0°C while the 7.0-V potential difference is maintained, what is the resulting current in the wire?
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