x a 10.0 cm
Q: A 16 turn conductive loop with an enclosed are of 0.44 m? exists in the plane of the page. A uniform…
A: Number of turn N = 16 Area of loop = 0.44m2 value of B(t) = 3t2e-0.4t resistance of loop = 2.5ohm
Q: ose an isolated magnetic South pole is discovered an then dropped through a horizontal conducting…
A: As the isolated magnetic south pole enters the loop, the magnetic flux due to the South pole…
Q: The figure below shows a circular loop of wire of resistance R = 0.500 n and radius r= 9.30 cm in…
A: We use the induced emf formula and its correlation with electric field.
Q: A solenoid has 555 closely spaced turns, a length of 12.0 cm, a radius of 3.00 cm, and carries a…
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Q: A rectangular loop of length L and width W is placed in a uniform magnetic field B with its plane…
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Q: For a square loop which has 50 turns that are 20 cm on a side, placed in a uniform magnetic field of…
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Q: How to determine the magnitude of the time changing magnetic flux thru the loop, if the EMF is…
A: It is given that
Q: A rectangular loop of length L and width W is placed in a uniform magnetic field B with its plane…
A: We will first write an expression for induced emf. Then we apply this expression to the given…
Q: A 48 turn conductive loop encloses an area of 71 m 2 At what constant rate should the magnetic field…
A: Given, Number of turns N = 48 Area A = 71m2 emf ε=3.58 Volts We know the expression for induced…
Q: 14) A circular coil L moves with constant velocity v into a uniform magnetic field B as shown in the…
A: The direction of the current is determined by using Biot-Savart’s right-hand rule.
Q: A moveable (massless and frictionless) bar with a length of L = 18/50 m is being moved at a constant…
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Q: A 20.9 turn conductive loop encloses an area of 0.57 m2. At what constant rate should the magnetic…
A: Given:- A 20.9 turn conductive loop encloses an area = 0.57 m2.…
Q: The long wire AB carries a current that is increasing at a constant rate di/dt . B (a) At the…
A: Aalysing the question, In this question we are given that the current is increasing at a constant…
Q: A guitar's steel string vibrates (see figure below). The component of magnetic field perpendicular…
A: Given: Magnetic field perpendicular to area B=50+3.20 sin1046πt (in mT) , Number of turns N=26,…
Q: A circular metal ring of radius a and resistance R is in a uniform magnetic field that is in a…
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Q: (a) What is the magnetic flux through the loop at an arbitrary time t? (b) If the loop has a…
A: Given data: The side of the square loop is: a = 3.2 cm The square loop’s distance from the long wire…
Q: A wire of resistance 0.50 ohms forms a loop of area 7.85*10^5 m^2, andthen is placed in a uniform…
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Q: An MRI scanner is based on a solenoid magnetthat produces a large magnetic field. The magnetic field…
A: The speed of the technician, v=0.80 m/s The distance from the scanner, d=1.0 m The initial…
Q: A single-turn circular loop of wire of radius 50 mm lies in a plane perpendicular to a…
A: Here given a single turn circular loop of radius 50mm.Here the time interval is 0.10 sec. With in…
Q: A circular loop of flexible iron wire has an initial circumference of, but its circumference is…
A: Solution- To find the induced electromotive force (emf) in the loop, you can use Faraday's law of…
Q: For a toroidal solenoid with the average circumference L =10 cm and 200 coils, the current is 100…
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Q: A flashlight can be made that is powered by the inducedcurrent from a magnet moving through a coil…
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Q: A conducting bar of length e moves to the right on two frictionless rails as shown in the figure…
A: # NOTE: Thank you for the question. As per the company honor code, we are allowed to answer up to…
A circular loop of wire is in
a region of spatially uniform magnetic
field, as shown in Fig. . The magnetic
field is directed into the plane of the
figure. Determine the direction (clockwise
or counterclockwise) of the induced
current in the loop when (a) B is increasing;
(b) B is decreasing; (c) B is constant
with value B0 . Explain your reasoning.


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- A flexible loop of conducting wire has a radius of0.12 m and is perpendicular to a uniform magnetic fieldwith a strength of 0.15 T,as in figure (a) below.The loopis grasped at opposite ends and stretched until it closesto an area of (3)(10^-3)(m^2), as in figure (b) below. If it takes 0.20s to close the loop, find the magnitude of the average emf induced in the loop during this time.A conducting crossbar is in electrical contact with two vertical conducting wires and slides down those wires, pulled by gravity. The wires are connected with a 10 Ω resistor R to form a closed circuit as shown in the figure. The mass of the crossbar is 30 gm and its length ` between the vertical wires is 0.5 m. There is a horizontal magnetic field B = 1 Tesla perpendicular to the plane of the loop. a) What is the induced current needed to counterbalance the force of gravity? b) Indicate the direction the current is moving and why this is the direction. c) How fast will the crossbar be moving after the initial period of acceleration?A 500-turn square coil of wire is hinged to the top of a table, as shown in the (Figure 1). Each side of the coil has a length of 0.50 m. Figure W T= 20 Z N•m N 1 ? S Hinge Determine the magnitude of the torque acting on the free end of the coil and caused by a 0.30-T field pointing westward when there is a 0.80-A current through the wire and when the coil is parallel to the table. Express your answer with the appropriate units. Hinge IE
- Problem 5: An alternator is a device that generates an emf. A rectangular loop (a simple version of alternator) is made to rotate with constant angular speed", about the axis. The magnetic field B is unifonm and constant. At time t = 0, D = 0. Determine the induced emf.A conducting bar of length { moves to the right on two frictionless rails as shown in the figure below. A uniform magnetic field directed into the page has a magnitude of 0.290 T. Assume R = 8.70 Q and { = 0.370 m. Bin R (a) At what constant speed should the bar move to produce an 8.20-mA current in the resistor? m/s (b) What is the direction of the induced current? O clockwise O counterclockwise O into the page O out of the page (c) At what rate is energy delivered to the resistor? (d) Explain the origin of the energy being delivered to the resistor.A metal loop sits in the x-y plane. A magnetic eld is directed radians o the z-axis, and variesin time according to B(t) = Boe-at at where Bo and a are constants. Find the emf generated around theloop as a function of time.
- (a) the disk-shaped area of radius twice that of the solenoid that is perpendicular to and centered on the axis of the solenoid as shown in the figure What is the definition of magnetic flux through a region? For this part, what is the magnitude of the magnetic field and what is the area over which there is a magnetic flux? Wb(b) the annulus with an inner radius half that of the solenoid and an outer radius equal to that of the solenoid What is the definition of magnetic flux through a region? For this part, what is the magnitude of the magnetic field and what is the area over which we are interested in the magnetic flux? WbA horizontal metal bar oriented east-west, is dropped straight down at a place where Earth's magnetic field is due north. As a result, an induced emf develops between the two ends of the bar. What would be the direction of the induced potential difference ? O Neither end carries any excess charge O West to east, the west end being at higher potential accumulating more positive charges O East to west, the west end being at higher potential (accumulating positive charges). O East to west, the east end being at higher potential accumulating more positive charges.A 40 turn conductive loop encloses an area of 0.55 m?. At what constant rate should the magnetic field directed perpendicular to the loop change with time if the induced emf is to be 4.25 Volts? Consider only positive numbers here in your answer.
- At some point, not close to its ends, within a solenoid of arbitrary length, calculate the approximate magnetic field if the solenoid carries a current of 18.0 A and has 17.0 turns/m of the solenoid’s length. Also, if the number of turns per m is tripled, the magnetic field will change in what way?17. A U-shaped wire is bridged by a small metal rod AB of length I, and the distance of the rod from the left end of wire is a at initial moment t=0 as indicated in the right figure. A uniform magnetic field is directed into of page. Now move the rod at constant velocity y to the right as indicated.(a) Calculate the magnetic flux through the loop formed by the wire and rod at any instant t. (b) Find the emf induced in the loop as the rod is moving. (c) Indicate the direction of the current induced in the loop. O wire 8 Al -rod t30O Resources O Hint A 181-turn circular coil of radius 2.85 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 12.3 2 resistor to create a closed circuit. During a time interval of 0.101 s, the magnetic field strength decreases uniformly from 0.449 T to zero. Find the energy E in millijoules that is dissipated in the resistor during this time interval. E = mJ