A 1.0-m-long, 1.0-mm-diameter copper wire (mass density 8920 kg/m3 ) carries a current of 50 A...
A 1.0-m-long, 1.0-mm-diameter copper wire (mass density 8920 kg/m3 ) carries a current of 50 A to the east. Suppose you want to levitate the wire by applying an externally created magnetic field. What field strength and direction do you need?
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A 1.0-m-long, 1.0-mm-diameter copper wire (mass density 8920
kg/m3 ) carries a current of 50 A...
A copper wire has diameter 0.180 mm and length 20.0 cm . It’s in a horizontal...
A copper wire has diameter 0.180 mm and length 20.0 cm . It’s in a horizontal plane and carries a current of 2.05 A . The density of copper is 8920 kg/m3. A. Find the magnitude of the magnetic field needed to suspend the wire against gravity. B. Find the direction of the magnetic field needed to suspend the wire against gravity. Assume the current points east.
Consider a straight piece of copper wire of length 8 m and diameter 8 mm that...
Consider a straight piece of copper wire of length 8 m and diameter 8 mm that carries a current I = 4.5 A. There is a magnetic field of magnitude B directed perpendicular to the wire, and the magnetic force on the wire is just strong enough to “levitate” the wire (i.e., the magnetic force on the wire is equal to its weight). Find B. Hint: The density of copper is 9000 kg/m3 .
Consider a straight piece of copper wire of length 9.5 m and diameter 2.5 mm that...
Consider a straight piece of copper wire of length 9.5 m and diameter 2.5 mm that carries a current I = 11 A. There is a magnetic field of magnitude B directed perpendicular to the wire, and the magnetic force on the wire is just strong enough to “levitate” the wire (i.e., the magnetic force on the wire is equal to its weight). Find B. Hint: The density of copper is 9000 kg/m3 .
A 0.68-mm-diameter copper wire carries a tiny current of 2.4 μA . The molar mass of...
A 0.68-mm-diameter copper wire carries a tiny current of 2.4 μA . The molar mass of copper is 63.5 g/mole and its density is 8900 kg/m3. NA=6.02×1023. Estimate the electron drift velocity. Assume one free electron per atom.
A 1.0 mm -diameter, 20 cm -long copper wire carries a 4.5 A current. What is...
A 1.0 mm -diameter, 20 cm -long copper wire carries a 4.5 A current. What is the potential difference between the ends of the wire?
A 5.0-m long, 1.0-mm diameter piece of copper wire (resistivity 1.7*10-8m)is woundinto a coil of many...
A 5.0-m long, 1.0-mm diameter piece of copper wire (resistivity 1.7*10-8m)is woundinto a coil of many turns that has a radius of 0.10 m. The ends of the wire are connected to a 1.5-V battery. Find:a) the magnetic field strength at the center of the coil.b) the magnitude and direction of the magnetic force on a proton placedat the center of the coil
A copper wire is 2.0 mm in diameter and carries a current of 20A.Part...
A copper wire is 2.0 mm in diameter and carries a current of 20 A.Part A.What is the electric field strength inside this wire?
A 0.53 m copper rod with a mass of 5.00×10−2 kg carries a current of 13...
A 0.53 m copper rod with a mass of 5.00×10−2 kg carries a current of 13 A in the positive x direction. Let upward be the positive y direction. A.)What is the magnitude of the minimum magnetic field needed to levitate the rod? B.)What is the direction of the minimum magnetic field needed to levitate the rod?
A long horizontal wire carries a current of I1 = 14.5 A. A second wire, made...
A long horizontal wire carries a current of I1 = 14.5 A.
A second wire, made of 0.150 mm diameter copper wire, is 90.0 cm
below the first wire and is held in suspension magnetically. What
is the magnitude and direction of the current in the bottom wire?
Give a + sign if I2 is parallel to I1, and a
- sign if I2 is opposite to I1.
The mass density of Copper is 8.93×103 kg/m3.
We were unable to...
A 0.48 m copper rod with a mass of 4.00×10−2 kg carries a current of 15...
A 0.48 m copper rod with a mass of 4.00×10−2 kg carries a current of 15 A in the positive x direction. Let upward be the positive y direction. What is the magnitude of the minimum magnetic field needed to levitate the rod? Express your answer using two significant figures. What is the direction of the minimum magnetic field needed to levitate the rod?
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