An MRI technician moves his hand from a region of very low magnetic field strength into an MRI scanner's 2.10 T field with his fingers pointing in the direction of the field. His wedding ring has a diameter of 2.11 cm, and it takes 0.320 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: Assume that a car travels northward at 75km/h along a straight road in a region where Earth’s…

A: Given data :- velocity of car v = 75 km/h = 20.833 m/s vertical component of the Earth’s magnetic…

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

A: Magnetic field strength is 2T

Q: A fan blade of length 50 cm rotates perpendicular to a magnetic field of 0.025 mT. If the emf…

A: Write the given data. r=0.5 mB=0.025×10-3 Te=1×10-3 VN=1

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

A:

Q: A conducting disc of radius 10 cm is rotating perpendicular to magnetic field at an angular…

A: Given: The radius of the disc is 10 cm. The angular speed of the disk is 40 rad/s. The induced emf…

Q: A scientist wearing a circular metal cuff on his wrist moves his hand into a uniform magnetic field…

A:

Q: A coil with circular cross section and 24 turns is rotating at a rate of 430 rpm between the poles…

A: a)The required radius is,

Q: wire loop with a resistance of 2.5 ohms and a radius of 0.255m is places in a magnetic field that…

A: Given resistance of wire = 2.5 ohms radius of wire =  0.255 m  B(t)=0.25e^(-.5t) We have to…

Q: "A single loop of wire of area 0.1 m2 is placed perpendicular to a magnetic field of intensity 2 T,…

A:

Q: 1. The force on a wire carrying 8.75 A is a maximum of 1.28 N when placed between the pole faces of…

A: As per bartleby guidelines for more than one question asked only fist is to be answered please…

Q: A flat, square, 75-turn coil of wire is rotated from having its plane perpendicular to an external,…

A:

Q: What is the peak emf generated by rotating a 1070-turn, 16 cm diameter coil in the Earth’s 5·10−5 T…

A: Number of turns (N) = 1070 Diameter (d) of coil = 16 cm = 0.16 m Magnetic field (B) = 5×10-5 T Time…

Q: In one of NASA's space tether experiments, a 20.0 km-long conducting wire was deployed by the space…

A:

Q: A circular wire loop with radius r = 20cm is placed in a region where magnetic field is…

A: The induced emf in the circular loop is given by the relation e = -dϕdt…

Q: Which of the following situations results in an induced emf? (a) A large, constantmagnetic field;…

A: Induced emf

Q: A metal rod 0.95 m long moves with a speed of 2.4 m>s perpendicular to a magnetic field. If the…

A: The expression for find strength of magnetic field is ε=BlvB=εlv

Q: A 15-turn circular loop of wire is placed into a magnetic field with initial magnitude 1.2 T. Over a…

A:

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

A:

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

A: Given, Initially ring is in low magnetic field , Bi = 0 magnetic field in the scanner, Bf = 2.00 T…

Q: What is the peak emf generated by rotating a 1000-turn, 20.0 cm diameter coil in the Earth’s 5.00 X…

A: To determine the peak emf, emf0=NABω

Q: A magnetic B field of strength 12 T is perpendicular to a conducting loop of wire measuring 0.8…

A:

Q: In one of NASA's space tether experiments, a 20.0 km-long conducting wire was deployed by the space…

A: The length of the conducting wire is, 20 km =20,000 m The velocity is 7.86 ✕ 103 m/s The…

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

A:

Q: For a toroidal solenoid with the average circumference L =10 cm and 200 coils, the current is 100…

A:

Q: A coil with an inductance of 2.0 H and a resistance of 10ohm is suddenly connected to an ideal…

A:

Q: A coil formed by wrapping 80 turns of wire in the shape of asquare is positioned in a magnetic field…

A: Given,

Q: The flexible loop in Figure has a radius of 20.6 cm and is in a magnetic field of magnitude 0.150 T.…

A: Given Time =t=0.2 sec Radius =r=0.206 m B=0.15 T Now wire us stretched to A,B so Area =0 ThusA2=0…

Q: he magnetic flux though a coil of wire that has 70 turns is changing at a rate of 0.030 Tm^2/s. What…

A: According to lenz's law magnitude of induced emf = Ndϕmdt , where N is number of loop and dϕmdt is…

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

A:

Q: A coil with an inductance of 2.6 H and a resistance of 8.2 Ω is suddenly connected to an ideal…

A:

Q: The loop shown below has a radius of 12 cm and is placed in a magnetic field oriented into the page,…

A: Given, radius of circle, r=12 cm=0.12 m resistance of the loop, R=5 Ω Magnetic field, B(t)=3-2t…

Q: patient comes in for an MRI and is placed within a strong magnetic field. For safety reasons, the…

A:

Q: A conducting rod with length L = 20 cm is being pulled along a long rotated U-shape conductor, with…

A: Given :  Length of rod = 20 cm = 0.20 m Magnetic field, B = 30 mT = 30 × 10-3 T Velocity of rod…

Q: what will be the magnitude of the induced emf in the loops of wire?

A:

Q: An emf is induced by rotating a 1000 turn, 20.0 cm diameter coil in the Earth's 4.95 ✕ 10−5 T…

A: N = Number of turns ion the coil = 1000 d = diameter = 20 cm = 0.2 m r = radius = 0.2/2 = 1m Area of…

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

A: Given data: Initial magnetic field strength (Bi) = 0 T Final magnitude field strength (Bf) = 1.60 T…

Q: 1.0 How many turns should a coil with a diameter of 50 mm needs to generate 24 v of electricity when…

A: The magnetic field due to a circular coil carrying current is given by:B=μ0nI2rwheren is number of…

Q: A car has a vertical radio antenna 1.05 meters long. The car travels at 5.80 m/s on a horizontal…

A: The expression for the magnitude of induced emf is ε=vBlsinθ θ is the angle between the direction of…

Q: Consider a coil with an area of 0.1 m2 and 17 turns placed in a magnetic field that is perpendicular…

A:

Q: A square wire loop 20 cm on a side, with resistance20 m , has its plane normal to a uniform magnetic…

A:

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

A:

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.