An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 1.80 T field with his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.25 cm, and it takes 0.360 s to move it into the field. (a) What average current is induced in the ring if its resistance is 0.0100 Ω? (Enter the magnitude in amperes.)  A (b) What average power is dissipated (in W)?  W (c) What average magnetic field is induced at the center of the ring? (Enter the magnitude in teslas.)  T

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: As per Bartleby Guidelines we can only answer first three parts of a question. Given :B=1.80 Td=2.25…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: Calculate, in Tesla squared meters, the magnitude of the change in the magnetic flux.  ΔΦ = ______…

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Q: An MRI technician moves her hand from a region of very low magnetic field strength (B=0) into an MRI…

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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: Problem 1:  An MRI technician moves his hand from a region of very low magnetic field strength into…

A: Given:-  An MRI technician moves his hand from a region of very low magnetic field strength into an…

Q: A wire loop of radius 14 cm and resistance 12 is located in a uniform magnetic field that changes in…

A: The radius of the wire loop is The resistance is The area of the wire loop is given by

Q: -coil is constructed by wrapping a wire of length 8.6 on a paper cylinder of adius 0.03 m and length…

A: Given Total length of wire = 8.6 m Radius of cylinder = 0.03 m Length L = 0.1 m  Current I = 0.1 A

Q: The current in a long solenoid of radius 2 cm and 19 turns/cm is varied with time at a rate of 5…

A: Given data r=2 cmn=19/cmdIdt=5 A/s Here, r is the radius of the solenoid, n is the number if turns…

Q: 1. An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: Given: Magnetic…

Q: A loop of wire with a radius of 10 cm is in a uniform magnetic field; it is perpendicular to the…

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Q: The current to an inductor with 25 windings and a cross sectional area of .025m^ 2 is increased such…

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Q: Imagine a conductor on rails that completes the circuit below. There is also a magnetic field with…

A: Induced emf=lVB So i=E/R And recall P=iV

Q: The magnetic flux through a coil of wire changes from 9T m- to zero in a time of 0.50 s. What is the…

A: 18 V

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: Initial magnetic field is Bi=0R=1.00 mJ  =1.00 mJ×10-3 J1 mJ  =10-3 J Final magnetic field is…

Q: A constantan wire of length 12 m and having a cross sectional area 1.3x10-4 m2 is converted into…

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Q: A square coil of side 16 cm has 200 tums and rotates in a uniform magnetic field of magnitude 0.05…

A: Given data: Side of the coil (s) = 16 cm = 0.16 m Number of turns (N) = 200 Magnetic field (B) =…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: The bolt of lightning depicted in the figure passes 200 m from a 90 turn coil oriented as shown. If…

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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: The objective of this question is to find the average electromotive force (emf) induced in the…

Q: )An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: Magnetic field strength 4.40 TDiameter of the ring 2.20 cmTime taken to move into the field: 0.35 s

Q: A charge of 0.5 C moves at a speed of 400 m/s at an angle of 30° to a magnetic field of strength…

A: Given, Charge,q=0.5 C Velocity,v=400 m/s Angle, θ=30° Magnetic field,B=0.5 T

Q: 7. A sheet of copper foil 1 mm thick, 5 cm wide and 1.75 m long is connected to a voltage source as…

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Q: A rectangular conducting loop has sides a = 0.065 m, sides b = 0.15 m, and resistance R = 55 Ω. It…

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Q: 0.5m 500 0 05 m B= 25, 5cos(120nt – 30°) (T) 500 Q resistance is connected to the square shaped…

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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: An MRI technician moves her hand from a region of very low magnetic field strength (B=0) into an MRI…

A: Given data- magnetic field B=1.55 T diameter D=2.55 cm so radius r=1.275 cm =1.275*10-2 m time…

Q: In the figure, a wire loop of dimensions L = 43.1 cm and W= 25.4 cm lies in a magnetic field. What…

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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: A copper bar 90 cm long is perpendicular to a field of 0.75 Wb/m2 and moves at right angles to the…

A: Given that:-Length of rod, l=90 cm=0.90 mSpeed, v=250 mm/sMagnetic field when perpendicular to each…

Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: Initial magnetic field is B1=0 Final magnetic field is B2=2.00 T Diameter of the ring is d=2.03…

Q: If 53.6 cm of copper wire (diameter = 1.42 mm, resistivity = 1.69 × 10*Q-m) is formed into a…

A: The resistance of a length L of a conducting wire is given in terms of the resistivity of the…

Q: Anupright rectangular loop of height a and width b has a lightbulb attached to it, with some…

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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

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Q: A rectangular slab (length 2.5 cm, width 1.5 cm, thickness 5.0 mm) of an unknown semiconductor with…

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Q: A generator has a 100-turns coil that rotates in a 0.30-T magnetic field at a frequency of 80 Hz,…

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Q: An MRI technician moves his hand from a region of very low magnetic field strength into an MRI…

A: initial magnetic field = 0 T final magnetic field = 2 T diameter = 2.2 cm radius = 1.1 cm = 0.011 m…

Q: The 5-cm by 8-cm rectangular coil of a bicycle generator is rotating at a rate of 125 rpm in a…

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Electromagnets

The word "electromagnet" is composed of two words, ‘electro’ and ‘magnet’. It is a type of magnet in which an electric current helps in the generation of a magnetic field. Electromagnets usually consist of two major parts, wire and a coil around which the wire is wound. This is called a solenoid. When an electric current is allowed to pass through the coiled wire, the electric current produces a magnetic field. This magnetic field is present only when current is passing through the wire.