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1. (20 pts) A circular coil with a radius of 8.0 cm is dropped from a...
A circular coil of 200 turns, with a radius of 8 cm, is dropped vertically into...
A circular coil of 200 turns, with a radius of 8 cm, is dropped vertically into a very long solenoid, which has a radius of 12 cm, 300 turns / m, and which conducts a current of 3 A. What is the value of the emf induced in the coil that is in free fall, due to the magnetic field of the solenoid?
A circular coil of radius 10.5 cm is located in a region of magnetic field where...
A circular coil of radius 10.5 cm is located in a region of magnetic field where B(t) = (+0.2 T/s)t and with the magnetic field oriented perpendicular to the plane of the loop. Find the magnutide of the induced EMF in this loop at t = 11.5 s.
A circular coil of 200 turns, with a radius of 8 cm, is dropped vertically into...
A circular coil of 200 turns, with a radius of 8 cm, is dropped vertically into a very long solenoid, which has a radius of 12 cm, 300 turns / m, and which conducts a current of 3 A. What is the value of the emf induced in the coil that is in free fall, due to the magnetic field of the solenoid ?. Express your answer in detail.
1. A 85 turn elastic circular coil of wire initially has a radius of 74.2 cm...
1. A 85 turn elastic circular coil of wire initially has a radius of 74.2 cm and is immersed in a uniform magnetic field with a strength of 0.495 T. At t 0, the coil is released and begins decreasing in radius at a constant rate of 7.22 cm/s. While it contracts, the number of turns does not change. a) Write the magnetic flux through a single turn of the coil as a function of time. (Hint: What causes the...
1) A 179‑turn circular coil of radius 3.55 cm and negligible resistance is immersed in a...
1) A 179‑turn circular coil of radius 3.55 cm and negligible resistance is immersed in a uniform magnetic field that is perpendicular to the plane of the coil. The coil is connected to a 13.7 Ω resistor to create a closed circuit. During a time interval of 0.121 s, the magnetic field strength decreases uniformly from 0.643 T to zero. Find the energy, in millijoules, that is dissipated in the resistor during this time interval. energy: mJ 2) You decide...
A circular coil 13.0 cm in radius and composed of 145 tightly wound turns carries a...
A circular coil 13.0 cm in radius and composed of 145 tightly wound turns carries a current of 2.30 A in the counterclockwise direction, where the plane of the coil makes an angle of 15.0° with the y axis (see figure below). The coil is free to rotate about the z axis and is placed in a region with a uniform magnetic field given by B = 1.20 ſ T. Je = 15.0° (a) What is the magnitude of the...
A circular coil 14.0 cm in radius and composed of 145 tightly wound turns carries a...
A circular coil 14.0 cm in radius and composed of 145 tightly wound turns carries a current of 2.80 A in the counterclockwise direction, where the plane of the coil makes an angle of 15.0° with the y axis (see figure below). The coil is free to rotate about the z axis and is placed in a region with a uniform magnetic field given by B = 1.40 ſ T. B O = 15.0° (a) What is the magnitude of...
A circular coil (800 turns, radius = 0.040 m) is rotating in a uniform magnetic field....
A circular coil (800 turns, radius = 0.040 m) is rotating in a uniform magnetic field. At t = 0 s, the normal to the coil is perpendicular to the magnetic field. At t = 0.028 s, the normal makes an angle of 45o with the field because the coil has made one-eighth of a revolution. An average emf of magnitude 0.094 V is induced in the coil. Find the magnitude of the magnetic field at the location of the...
A circular coil 20.0 cm in radius and composed of 145 tightly wound turns carries a...
A circular coil 20.0 cm in radius and composed of 145 tightly wound turns carries a current of 2.60 A in the counterclockwise direction, where the plane of the coil makes an angle of 15.0° with the y axis (see figure below). The coil is free to rotate about the z axis and is placed in a region with a uniform magnetic field given by B = 1.30 ſ T. 1 B y A = 15.0° (a) What is the...
A circular coil of radius 5 cm has 50 turns of wire. The uniform magnetic field...
A circular coil of radius 5 cm has 50 turns of wire. The uniform magnetic field directed into the page/screen (see the figure below) is linearly increased in magnitude form 0 to 0.8 T. What time interval for this increase is needed to induce in the coil emf = 0.25 V? What is the direction of the induced emf (clockwise/counterclockwise)? Which law do we use?
1. A 85 turn elastic circular coil of wire initially has a radius of 74.2 cm and is immersed in a uniform magnetic field with a strength of 0.495 T. At t 0, the coil is released and begins decreasing in radius at a constant rate of 7.22 cm/s. While it contracts, the number of turns does not change. a) Write the magnetic flux through a single turn of the coil as a function of time. (Hint: What causes the...
A circular coil 13.0 cm in radius and composed of 145 tightly wound turns carries a current of 2.30 A in the counterclockwise direction, where the plane of the coil makes an angle of 15.0° with the y axis (see figure below). The coil is free to rotate about the z axis and is placed in a region with a uniform magnetic field given by B = 1.20 ſ T. Je = 15.0° (a) What is the magnitude of the...
A circular coil 14.0 cm in radius and composed of 145 tightly wound turns carries a current of 2.80 A in the counterclockwise direction, where the plane of the coil makes an angle of 15.0° with the y axis (see figure below). The coil is free to rotate about the z axis and is placed in a region with a uniform magnetic field given by B = 1.40 ſ T. B O = 15.0° (a) What is the magnitude of...
A circular coil 20.0 cm in radius and composed of 145 tightly wound turns carries a current of 2.60 A in the counterclockwise direction, where the plane of the coil makes an angle of 15.0° with the y axis (see figure below). The coil is free to rotate about the z axis and is placed in a region with a uniform magnetic field given by B = 1.30 ſ T. 1 B y A = 15.0° (a) What is the...
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