1.The Easter Bunny is trying new things so, instead of a basket of candy, she left you a funnybunny bar, a giant magnet, and parallel copper rails that are a distance, L = 80 cm apart,and are connected at each end by a light bulb as shown in the figure. (15 points)The Easter Bunny also left instructionson how to light the bulbs, which haveresistances, R₁ = 2, and R₂ = 3.She said you needed to slide thebunny bar across the frictionless rails,perpendicular to the uniform magneticfield, B = 0.75 T, produced by the giantmagnet. So that's what you did.R₁×× ×ひR2(a)Sketch the direction of the induced× ××current through each bulb when you pullthe bar to the right as shown in the figure.(b) Start from basic equations (not memorized solutions) and derive a symbolic expression forthe magnetic force on the sliding bunny bar in terms of L, R₁, R2, B, and v, as needed.(c)=2.1 N, how fast will it be movingappIf you pull the bar to the right with a constant force, Fwhen the bulbs reach maximum (terminal) brightness?

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Answered: 1. The Easter Bunny is trying new…

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter22: Magnetism

Section: Chapter Questions

Problem 18PE: An electron in a TV CRT moves with a speed at 6.00107m/s, in a direction perpendicular to the...

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An evacuated tube uses an accelerating voltage of 40 kV to accelerate electrons to hit a copper plate and produce x rays. Non-relativistically, what would be the maximum speed of these electrons?
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12. In a magnetic field with induction B placed two parallel metal plates, the distance between them is equal to d. The flux of electrons with velocity v between the plates moves rectilinearlyparallel to the plane of the plates. What is the potential difference between the plates?
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2. A long cylindrical wire has a radius R and a uniform current density J. In terms of J, Use Ampere's law to... a) Calculate the magnetic field at a point inside the wire. b) Calculate the magnetic field at a point outside the wire. (Obviously the current density outside the wire is zero, but the B field is not!)
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1. A 1.50 V battery is connected in series with a capacitor and a 275Ω resistor. a. What is the charge and the voltage across the capacitor immediately after the switch is closed? b. At steady state, what will be the potential across the capacitor? 2. A loop of wire in the form of a square 1.50 m on each side, its plane makes an angle of 40.0° with a uniform magnetic field of 0.95 T. What is the magnetic flux through the loop?
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C. Out of the page. D. Into the page. 45. Which direction are electrons traveling in the wire? A. Up the page. B. Down the page. C. In a spiral. D. In a circle. D. Out of the p 51. What is the di at point A? A. Into the pa B. Out of the C. To the rig D. To the lef In the figure the magnetic field is pointing down. A horizontal wire is shown. magnetic field A current I is fl shown. ↓ ↓ ↓ ↓ ↓ wire 46. If an external force pulls the horizontal wire down the page, which of the following best indicates the direction of the force of the magnetic field on the electrons in the wire? A. Up. B. Into the page. C. Out of the page. D. There is no magnetic force. 47. If the horizontal wire is pulled out of the page toward you, which of the following best indicates the direction of the force of magnetic field on the electrons in the wire? electric current A. Right. B. Into the page. C. Left. D. There is no magnetic force. CS Scanned with CamScanner Point P is in t 53. What is at point A. Out B. Into…
1. A thin ring rotates about an axis perpendicular to a uniform magnetic field H. Its initial frequency of rotation is a. Find the time it takes the frequency to decrease to 1/e of its original value under the assumption that the energy goes into Joule heat. Display your answer in terms of conductivity, mass density of the ring, and field.

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