A square a x a coil has N turns. A uniform magne
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A: Here given a 133 turn square wire coil with sides of length L = 18.4 cm. The vertical axis rotates…
Q: A closely wound rectangular coil of 100 turns has a dimension of 12.0cm x 25.0cm. In time t=0.0800 s…
A: Given, Number of turns of rectngular coil, N = 100dimension, 12.0 cm ×25.0 cmtime, t = 0.080 sit…
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A: In given question, magnetic flux associated is changing with time. So as per Faraday's law of…
Q: large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage…
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Q: A coil with circular cross section and 24 turns is rotating at a rate of 430 rpm between the poles…
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Q: The magnetic flux through a coil of wire containing 15 loops changes at a constant rate from 10Wb to…
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Q: directed perpendicular to the plane of the coil. Calculate the magnitude of the average emf that is…
A: Given value--- no of turns = 53 . dimension = 5 cm × 10 cm . magnetic field = 0 T to 0.510 T . time…
Q: A coil with a wire that is wound around a 2.0 m² hollow tube 35 times. A uniform magnetic field is…
A: Area, A=2.0 m2 Number of turns, N=35 Initial magnetic field, Bini=0.00 T Final magnetic field,…
Q: A 0.200-m wire is moved parallel to a 0.500-T magnetic field at a speed of 1.50 m/s. What emf is…
A: Length, l = 0.200 mField, B = 0.500 TSpeed, v = 1.50 m/sInduced emf, ε = ?
Q: Suppose coils A and B are in the same constant magnetic field, both with axes of rotation in a plane…
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Q: A motion EMF system consists of a conductive bar that can freely slide across bare wires in which it…
A: ε=BvLIR=BvLI=BvLR Since the length of the conductive bar is not given, let it be of unit length,…
Q: A wire loop of radius 0.33 m lies so that an external magnetic field of magnitude 0.35 T is…
A: Radius of loop (r) = 0.33 m Initial magnetic field (B) = 0.35 T Final magnetic field (B') = -0.16 T…
Q: An emf of 17.0 mV is induced in a 480-turn coil when the current is changing at the rate of 10.0…
A: The self induced emf in a RL circuit is defined as ε=L∆I∆t or we ca write L=ε∆I∆t In this question,…
Q: The emf generated in the inner N-turn coil is = -Ndg/dt. Note that because t in the exponential…
A: Second last step of the question is to be solved.
Q: In a certain time period a coil of wire is rotated from one orientation to another with respect to a…
A: Given , in a certain time period a coil of wire is rotated from one orientation to another. Induced…
Q: A flexible circular loop 6.30 cm in diameter lies in a magnetic field with magnitude 1.26 T,…
A: Given information: The diameter of the circle (d) = 6.30 cm = 0.063 m The strength of the magnetic…
Q: The figure below displays a circular loop of aluminum wire in a uniform magnetic field pointing into…
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Q: A 80-cm side length square coil has 145 turns. An initial uniform magnetic field of strength 6.5 mT…
A: Given:- B = 6.5 mT L = 80 cm N = 145 turns
Q: A 125-turn, 17.5 cm diameter coil rotates at 2.00 rev/s in a 2.75 T field, starting with the plane…
A: Approach to solving the question: Detailed explanation:Examples: Key references:
Q: A generator has a 46-turn coil with an area of 0.07 m2 that turns at 25.0 rad/s in a 0.48 T magnetic…
A: Given, Number of turns,N=46 Area of coil, A=0.07 m2 Angular speed,ω=25 rad/s Magnetic field,B=0.48 T…
Q: The primary coil of a transformer has 329 turns; the secondary coil has 1000 turns. An alternating…
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Q: A square loop made of a metal wire is placed on the page. The length of both sides of the square…
A: Initial side length (s0): 4.0 cm = 0.04mFinal side length(sf): 3.0 cm = 0.03mChange in time (t): 25…
Q: Consider a rectangular loop of wire 6.9 cm by 9.0 cm in a uniform magnetic field of magnitude 1.1 T.…
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Q: An emfis induced by rotating a 1107 turn, 20.0 cm diameter coil in the Earth's 3.53 x 10-5T magnetic…
A: initial flux == Nπr2B= 1107×π×0.222×3.53×10-5 Wb
Q: The figure below displays a circular loop of aluminum wire in a uniform magnetic field pointing into…
A: Calculate the area of the loop. A=πr2A=π(11.0 cm×1 m100 cm)2A=0.038 m2
Q: A loop of wire in the shape of a rectangle rotates with a frequency of 310 rotation per minute in an…
A: The angular frequency, ω=310 rev/minω=310×2×π60ω=32.463 rad/s The magnetic field, B=6 T The…
Q: starting with the normal of the plane of the coil perpendicular to the field. Assume that the…
A: Induced emf in any generator E = Eo sinwt Where Eo = peak emf = NABW W = angular speed B= magnetic…
A square a x a coil has N turns. A uniform magnetic field B=Bosin(wt) passes perpendicularly through the coil. Calculate the time-dependent emf produced in the coil.

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- A straight wire carries a steady current / in a downward direction. A conducting bar touching two parallel conducting rails moves upward with velocity v. What is the polarity of the induced emf in terminals X and Y? X Y O X and Y are at the same potential. O X is positive and Y is negative. O Yis positive and X is negative.What is the magnitude of the rate at which the current though a 0.30-H coil is changing if an emf of 0.12 V is induced across the coil? 0.025 A/s 0.4 A/s 0.036 A/s 0 A/sA large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage to 315 kV. The secondary coil of this transformer is being replaced so that its output can be 725 kV for more efficient cross-country transmission on upgraded transmission lines. V1 = 315 kVV2 = 725 kV What is the ratio of turns in the new secondary to the number of turns in the old secondary? What is the ratio of new current output to the old current output for the same power input to the transformer? If the upgraded transmission lines have the same resistance as the original ones, what is the ratio of new line power loss to the old?
- A bicycle generator rotates at 1500 rad/s, producing an 21.0 V peak emf. It has a 1.30 by 3.50 cm rectangular coil in a 0.510 T field. How many turns are in the coil? Is this number of turns of wire practical for a 1.30 by 3.50 cm coil? No YesThe figure below displays a circular loop of nickel wire in a uniform magnetic field pointing into the page. The radius of the loop is 11.0 cm and the magnitude of the field is 0.140 T. You grab points A and B and pull them in opposite directions, stretching the loop until its area is nearly zero, taking a time of 0.190 s to do so. What is the magnitude of the average induced emf in the loop (in mV) during this time? x X X X x mV X x x x x x A Ax x x x 90x B x x x x X x x X xA thin coil has 12 rectangular turns of wire. When a current of 1.7 A runs through the coil, there is a total flux of 0.005 T-m² enclosed by one turn of the coil (note that the inductance is the proportionality constant between current and magnetic flux). What is the total inductance in Henries? H
- A 2.00×10-2 Ω square wire loop 40.0 cm on a side has its plane normal to a uniform magnetic field of magnitude B = 3.0 T. If you pull two opposite sides of the loop away from each other, the other two sides automatically draw toward each other, reducing the area enclosed by the loop.If the area is reduced to zero in a time of 0.30 s what is the average emf during this time interval? What is the average current during this time interval?A coil of 1000 turns encloses an area of 50e4 cm2 and is in a magnetic field of strength 3e-6 T which is parallel to the loops area vector. What is the induced emf if the magnetic field changes to 0 in half a minute? 5.0e-7 V 2.5e-7 V 0.005 V 0.0025 VA large power plant generates electricity at 12.0 kV. Its old transformer once converted the voltage to 360 kV. The secondary coil of this transformer is being replaced so that its output can be 770 kV for more efficient cross-country transmission on upgraded transmission lines.Randomized Variables V1 = 360 kVV2 = 770 kV a) What is the ratio of turns in the new secondary to the number of turns in the old secondary? b) What is the ratio of new current output to the old current output for the same power input to the transformer? c) If the upgraded transmission lines have the same resistance as the original ones, what is the ratio of new line power loss to the old?
- The figure below shows a 117-turn square coil rotating about a vertical axis at at w = 1,460 rev/min. The length of a side of the coil is 20.0 cm. The horizontal component of the Earth's magnetic field at the coil's location is equal to 2.00 x 10-5 T. 20.0 cm 20.0 cm (a) What is the magnitude of the maximum emf (in mV) induced in the coil by the Earth's magnetic field? mV (b) What is the orientation of the coil with respect to the magnetic field when the maximum emf occurs? The plane of the coil is oriented 45° with respect to the magnetic field. O The plane of the coil is parallel to the magnetic field. The plane of the coil is perpendicular to the magnetic field.A square coil of wire has 10 turns and an area of 20 cm^2. The square coil is located in a variable magnetic field whose behavior is shown on the graph. The magnetic field is directed at an angle of 45° relative to the normal to the plane of the square coil. a. What is the average emf induced in the coil in the time interval from t=7.50 s to 10.0 s? b. If the wire has a resistance of 0.75 Ω determine the induced current for the interval from part (a)?Suppose the 50 turn coil in the figure below lies in the plane of the page and originally has an area of 0.230 m². It is stretched to have no area in 0.100 s. X Bin XBin X V What is the direction? clockwise X counterclockwise X X What is the magnitude (in V) of the average value of the induced emf if the uniform magnetic field points into the page and has a strength of 1.75 T? X X 192 X