5. MRI (magnetic resonance imaging) is a medical technique that producesdetailed "pictures" of the interior of the body. The patient is placed into asolenoid that is 40cm in diameter and 1.0m long. A 100A current creates a5.0T magnetic field inside the solenoid. To carry such a large current, thesolenoid wires are cooled with liquid helium until they becomesuperconducting (no electric resistance).a. How much magnetic energy is stored in the magnetic field of thesolenoid?b. Assume that the magnetic field is uniform within the solenoid and zero outside the solenoid (an idealsolenoid). How many turns of wire does the solenoid have?c. An MRI machine needs to detect signals that oscillate at very high frequencies. It does so with an LCcircuit containing a 15mH inductor. To what value should the capacitance be set for the LC circuit todetect (strongly oscillate at) a 450 MHz signal?

A magnetic field, radio waves, and a computer are used to create a detailed image of the inside of…

Answered: MRI (magnetic resonance imaging) is a…

Similar questions

A small circular coil of 20 loops of wire having a radius of 1 cm is at rest in the X-y plane (so the normal to the loop points in the +z-direction). A uniform magnetic field of 0.5 T is turned on in the +x-direction. What is the magnetic flux through the loop? a. 7.85 x 10 Tm² b. 1.57 x 10 4 T m² O c. 3.14 x 10 3 T m2 O d. 0 T m2
A square loop of wire with sides of 20.0cm is half in and half out of a uniform magnetic field which points out of the page as shown. The loop is moving with a speed of 3.00m/s and the strength of the magnetic field is 0.100Tesla. The total resistance of the loop is 4.00Ω. Find the magnitude and directionof the current if the loop is moving in the following directions. a.in the +x direction b.in the -x direction c.in the +y direction d.in the -y direction
A. What is the current in the current loop? B. What is the current density J in the current loop? C. To decide whether this is a large or a small current density, find the ratio of the current density J in the current loop to the current density of a 8.0 A current in a 1.6- mm diameter wire. Express your answer using two significant figures.
C 12:52 HW8_60e193652a3a1c9d2d... 2. 2 of 4 SOS Done The 5.2 m long metal rotor blades of a helicopter spin at 6.0 revolutions per second perpendicular to the earth's magnetic field of 4.7x10 T. Axis What is the magnetic flux swept out by the rotor blades in one revolution and what is the emf induced between the axis and tip of a rotor blade? 3. In a CRT electrons are accelerated from rest by a potential difference of 1.40x10'V These electrons enter a magnetic field with a strength of 2.20x102 T Assuming the electrons are traveling perpendicular to the field what id the radius of the are of the deflected electrons?
The plane of a circular loop with radius 14 cm makes an angle 35 degrees with a uniform magnetic field of magnitude 0.1 T. a) What is the flux through the loop? Wb b) If the field reversed in direction, what is the change in flux? Wb
1. Loop moving into a Constant Magnetic Field. Consider a square loop with side length 1m moving at a rate 0.1 m/s in the +x-direction into a magnetic field 6m long with constant strength and direction of B = 1 T 2 (into the page). a. Sketch a diagram of the magnetic flux vs. time with t=0 when the right edge of the square loop just starts to enter the magnetic field. b. Sketch a diagram of the induced electromotive force.
A conducting loop around a region of strong magnetic field contains two lightbulbs, as shown. The wires connecting the bulbs are ideal. The magnetic field is increasing rapidly.a. Do the bulbs glow? Why or why not?b. If they glow, which bulb is brighter? Or are they equally bright? Explain.
The rod shown in the accompanying figure is moving through a uniform magnetic field of strength B = 0.85 T with a constant velocity of magnitude v = 4.5 m/s. What is the potential difference between the ends of the rod? Which end of the rod is at a higher potential? T. 5.0 cm Hint a. The magnitude of the potential difference between the ends of the rod is V. b. The Select an answer v of the rod is at a higher potential. Hint for (b)