The loop is in a magnetic field 0.34 T whose direction isperpendicular to the plane of the loop. At t = 0, the loophas area A = 0.285 m². Suppose the radius of the elasticloop increases at a constant rate, dr/dt = 5.55 cm/s.Part ADetermine the emf induced in the loop at t = 0 and at t = 1.00 s.Express your answer using two sifnificant figures.ΜΕ ΑΣΦε(0) =SubmitRequest AnswerPart BExpress your answer using two sifnificant figures.ΑΣΦE(1.00) =SubmitRequest AnswerProvide Feedback??mVmVConstants | Periodic TableNext >

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Answered: The loop is in a magnetic field 0.34 T…

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter32: Faraday’s Law Of Induction

Section: Chapter Questions

Problem 45PQ

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A single-turn circular loop of wire of radius 50 mm lies in a plane perpendicular to a spatially uniform magnetic field. During a 0.10-s time interval, the magnitude of the field Increases uniformly from 200 to 300 mT. (a) Determine the emf Induced in the ioop. (b) If the magnetic field is directed out of the page, what is the direction of the cun-ent induced in the loop?
If electric and magnetic field strengths vary sinusoidally in time at frequency 1.00 GHz, being zero at t=0, then E=E0sin2ft. (a) When are the field strengths next equal to zero? (b) 4Jhen do they reach their most negative value? (c) How much time is needed for them to complete one cycle?
A 500-turn coil with a 0.250m2 area is spun in Earth’s 5.00105T magnetic field, producing a 12.0-kV maximum emf. (a) As what angular velocity must the coil be spun? (b) What is unreasonable about this result? (c) Which assumption or premise is responsible?
Check Your Understanding What Is the magnitude of the induced electric field in Example 13.8 at t=0 if r= 6.0cm, R= 2.0cm,n = 2000 turnspermeter, I0= 2.0A, and a = 200s-1?
The magnetic field in the core of an air-filled solenoid is 1.50 T, By how much will this magnetic field decrease if the ail is pumped out of the core while the current is held constant?
A parallel-plate capacitor with plate separation d is connected to a source of emf that places a time-dependent voltage V(t) across its circular plates of radius r0and area (a) Write an expression for the time rate of change of energy inside the capacitor in terms of V(t) and dV(t)/ dt. (b) Assuming that V(t) is increasing with time, identify the directions of the elecuic field lines inside the capacitor and of the magnetic field lines at the edge of the region between the plates, and then the direction of the Poynting vector S at this location. (c) Obtain expressions for the time dependence of E(t), for B(t) from the displacement current, and for the magnitude of the Poynting vector at the edge of the region between the plates. (d) From S , obtain an expression In terms of ‘(t) and dV(t)/dt for the rate at which electromagnetic field energy the region between the plates. (e) Compare the results of pails (a) and (d) and explain the relationship between them.
The magnetic flux through the loop shown in the accompanying figure varies with time according to m=2.00e3tsin(120t) , where m is in milliwebers. What are the direction and magnitude of the current through the 5.00 resistor at (a) t= 0; (b) t=2.17102 s and (c)t=3.00 s?
jub A rectangular loop of area A=0.160 m2 is placed in a region where the magnetic field is perpendicular to the plane of the loop. The magnitude of the field is allowed to vary in time according to B=0.384e 2, where B is in teslas and t is in seconds. What is the value for induced emf ( in units of mV) at t= 4.5 s? Select one: on O A. 6.48 ОВ. 2.09 OC. 4.01 OD. 1.70 OE. 3.24 Next page page
A 16.7 turn conductive loop with an enclosed are of 0.53 m2 exists in the plane of the page. A uniform magnetic directed perpendicular to the plane of the page varies with time according to the expression; B ( t ) = 3t^2e^0.4t where as constants have proper SI units If the resistance of the loop is 2 Ohms, what is the induced current at 4.27 seconds?
The magnetic field shown in the diagram is oriented perpendicular to the loop and is described by the equation B = 1 + (0.5) t - (0125) tº T, where t i time. If the loop has dimensions of 5m in length x 3 m in width and it has a resistance of 5 2, what is the rate of change of the magnetic flux through the loop at t = 2 s? Faraday.pdf O 15 T m s-1 O 15 Ts1 O - 15 T m s-1 O -15 Ts1 O - 30 T m s1
A 16 turn conductive loop with an enclosed are of 0.55 m^2 exists in the plane of the page. A uniform magnetic directed perpendicular to the plane of the page varies with time according to the expression; B(t) = 3t^2e^-0.4t Where our constants have proper SI units If the resistance of the loop is 2.7 Ohms, what is the induced current at 4.35 seconds? Enter this as a positive value measured in Amps
A rectangular loop of area A=0.160 m is placed in a region where the magnetic field is perpendicular to the plane of the loop. The magnitude of the field is allowed to vary in time according to B=0.371e 2, where B is in teslas andtis in seconds. What is the value for induced emf ( in units of mV) at t= 4.5 s? Select one: OA. 1.64 O B. 6.26 OC 3.13 OD. 2.02 QE 387 Next page 直

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