A copper ring can be made to levitate about the extended bar of an electromagnet because the magnetic field induced in the ring... • remains strong and steady. • opposes the field producing it. is attracted to the top end of the bar. none of the above Explain your answer.

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A: We need to tell the force on the length element dl on the conducting ring due to the magnetic field.

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A: Given data The magnitude of the current in the wire loop is I1 = 2 A The magnitude of the current in…

Q: Three infinite long wires are placed in the y-axis as shown in the figure. Each carry a current…

A: I1 = 12 A I2 =8A I3 = 10 A  r is the perpendicular  distance between wire and point M r1 = 13 cm =…

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Q: Point 2 is 5.27 cm from the intersection and equally distant from both wires. What is the magnitude…

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Q: When a student of physics placed four differ- ent pieces of a substance, in a magnetic field, they…

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Q: 8c.1. Show that the minimum of the semiconductor conductivity o= e(note + Poth) is when its electron…

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Q: 4) a .... Two infinitely long parallel wires placed 2a apart on xy plane as shown in the figure.…

A: Given : a = 1 m I = 40 A uo = 4π x 10-7 (T.m/A)

Q: Figure 2 of 2 An electron moves with a speed of 3.5 x 107 m/s in the directions shown in (Figure 1)…

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Q: •P zero directed into the page directed out of the page directed to the left directed to the right

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Q: (0,0,6) 4A y (0,8,0)

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Q: ★★ A circular 100-loop coil with a radius of 0.100 m is located in the horizontal xy- plane, as…

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Q: In the figure, if a = 1.8 cm, b = 3.5 cm, and I = 5.0 A, what is the magnitude of the magnetic field…

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Q: ( anolo An aircraft flies horizontally 6 Zat a speed of 800 km per hovs the earth's magnetic the…

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Q: A 15-turn square coll of side 20cm lles In xy-plane and carrles SA current in counterclockwise…

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Q: An Electron (qe= 1.6 x 1019c & me= 9.1 x 103-kg) is moving in a circular orbit of radius 50cm in a…

A: It is given that, Charge qe=1.6×10-19Cmass me==9.1×10-31 kgradius r=50 cm=0.5 mmagnetic field B=6 T

Q: 4. You have an air-filled solenoid that has radius of 2.4cm, comprised of a wire that has a…

A: Given, Radius,R=2.4cm=2.4×10-2mResistance,R=147mΩ=147×10-3ΩLength,L=15.07mDiameter of…

Q: robb Problem 10: A 200 turn circular loop of radius 45 cm is lying flat on the ground with a current…

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Q: A current of 12.0 mA is maintained in a single circular loop of 3.50 m circumference. A magnetic…

A: Given: The current in the coil is 12.0 mA. The circumference of the coil is 3.50 m. The number of…

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Q: Each of the wires in the figure below carries a current of 2.91 A in the directions indicated. For…

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Q: ) Find the current through a loop needed to create a maximum torque of 9.00 N. The loop has 50…

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Q: PRINTER V on MET RACK Chapter 29, Problem 057 A student makes a short electromegnet by winding 310…

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A: GIVEN: distance from P to the upper wire (wire1) = d distance from P to the lower wire (wire2) = d…

Q: R P

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Q: A 60.0-cm length of wire carries a current of 10.0 A. It is bent into an equilateral triangle loop…

A: Given that, The length of the wire, L=60 cm The current carried by the wire is l=10 A The magnitude…

Q: current is shown along the x axis going in the -x direction. a positive charge was located at P but…

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Q: mate of their size by r. What is the current

A: Given that The amount of magenetic field B= 3×10-8 G = 3×10-12 Tesla DDiameter of the current loop…

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Q: A proton moves perpendicular to a uniform magnetic field B at a speed of 2.00 x 107 m/s and…

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Q: A proton having an initial velocity of 23.5î Mm/s enters a uniform magnetic field of magnitude 0.360…

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Q: Reviev An electron moves at 2.00 x 10 m/s through a region in which there is a magnetic field of…

A: Given The speed of an electron is v=2×106 m/s. The magnitude of the magnetic field is B=7.20×10-2…

Q: 2. The magnetic field in a region is vertical and was measured to have the values shown on the…

A: Magnetic field at the top surface of cylinder, Bt =0.012 TMagnetic field at the bottom surface of…