A flat, circular, steel loop of radius 75 cm is at rest in a uniform magneticfield, as shown in an edge-on view in the figure. The field is changing withtime, according toB (t) = (1.4T) e− (0.057s¯¹)tBPart A60%Find the emf induced in the loop as a function of time (assume t is inseconds).Express your answer in volts in terms of the variable t.ΜΕ ΑΣΦE =SubmitRequest AnswerPart B?When is the induced emf equal to 15 of its initial value?Express your answer in seconds.ΕΠΙ ΑΣΦwwwww?t =SubmitRequest AnswerVS

Answered: Image /qna-images/answer/2dec48a2-69b4-467f-b2e4-2f45a505144c.jpg

Answered: A flat, circular, steel loop of radius…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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The normal to the plane of a single-turn conducting loop is directed at an angle θ to a spatially uniform magnetic field B → . It has a fixed area and orientation relative to the magnetic field. Show that the emf induced in the loop is given by ε = (dB/dt)(A cos θ), where A is the area of the loop.
An elastic circular conductor expands at a constant rate with time so that its radius is given by r (t) = r_0 + vt, where r_0 = 0.1m and v = 0.015m / s. The loop has a constant resistance of R = 12Ω and is placed in a uniform magnetic field of magnitude B_0 = 0.75T, perpendicular to its plane, as shown in the figure. Find the direction and magnitude of the induced current, i_ {ind}, at t = 5s.
A square loop of dimensions 5.0 cm x 5.0 cm is initially in a 0.80-Tesla magnetic field, with its plane perpendicular to B; but it is removed from the field in 100 ms. What is the magnitude of emf induced in the loop?
B,D,E,F
A single loop (N=l) of wire of radius r = 0.0300 m lies with its face parallel to the page. It is in an external uniform perpendicular magnetic field pointing OUT as shown in the diagram below by the dot surrounded by a circle ⊙. Suppose the external magnetic field magnitude is with rate △B/△t = 10.00 What is the area A of the wire loop? What is the magnitude IεI of the voltage induced in the wire loop ? The loop has resistance R = 40.0 Ω. What is the current I in the loop? In the figure below, indicate the direction of the current I, clockwise or counter-clockwise, in the loop. Draw a labeled curved arrow on the loop representing the current direction. In the figure below, indicate the direction of the induced magnetic field , in or out. Indicate this direction by drawing a labeled IN (×) or OUT ⊙ symbol within the circle.
There is a uniform magnetic field of B= 14T. pointing into the page. A wire of length D – 40 m and mass m frictionlessly on other wires in the horizontal direction, is a part of a circuit shown in the figure. The circuit, which is shown in the figure, consists of conducting wires and a solenoid. Let us assume that we can neglect the effect of resistance of the wires compared to the self-inductance L 15 H (Henry) of the solenoid. 33 kg, which can move freely and Find the angular frequency (w) of the wire, in units of rad/s when it is given a non-zero initial velocity (th) in the horizontal direction. L. O 4.53 O 2.26 11.31 O 0.57 O 25.17
A square loop of each side as 'a' and a circular loop with the diameter of length 'a' lie in the xy-plane, where there is a uniform magnetic field B pointing at an angle with the positive z-direction. Each loop carries the same current, in the same sense (clockwise or counterclockwise). Which magnetic torque is larger? By what ratio? (Take the torque T, for square, Tc for the circle) Te is greater than T, where Tc/ Ts = 4/π. OT, is greater than Te where Ts/ Tc = 8/T. OT, is greater than Te where T5 / Tc = 4/π. OTS is greater than Te where Ts/ Tc = 2/3π.
Problem 7: Part (a) Express the current induced in the loop, I, in terms of ε and R. I = ______ Part (b) Calculate the value of I, in amperes. I = ______
thanks!
The figure below shows a top view of a bar that can slide on two frictionless rails. The resistor is R = 5.00 N, and a 2.50-T magnetic field is directed perpendicularly downward, into the page. Let l = 1.20 m. x Pin B, R app (a) Calculate the applied force required to move the bar to the right at a constant speed of 1.70 m/s. 3.06 N (to the right) (b) At what rate is energy delivered to the resistor? 5.202 W Need Help? Read It Master It xx x x x x x x × x x x x × × X X X x X X X

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