The loop of wire shown has an area of.05 m' and is positioned in themagnetic field shown.The magnetic field initially has a magnitude of .2 T. The magneticfield in increased to a value of.8 T in .6 seconds.Calculate the magnitude of the average emf induced in the coil.Indicate on the figure the direction of the induced current through the resistor.CcWDescribe in a couple of brief sentences why you chose the direction that you did.

Answered: Image /qna-images/answer/7208dd5f-f3f8-42d3-b807-822ccd60cd5d.jpg

Answered: The loop of wire shown has an area…

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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In the image below, two conducting rings are in the same plane. The outer ring contains a resistor R, while the inner ring has a clockwise current /that is increasing in magnitude. You may assume that the magnetic field that is generated by the inner ring is negligible outside the ring. The induced current through R R. O goes from b to a O goes from a to b. O doesnt' exist. There is no induced current through R.
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Two coils with iron cores are positioned as shown in the figure. The smaller coil is part of a circuit with a battery and a switch. Immediately after the switch Sis closed, which one of the following statements is true? O A magnetic field that points away from the smaller coil appears inside the larger coil. O An induced current will flow from right to left in R. O A magnetic field that points away from the larger coil appears inside the smaller coil. O A current will pass through r, but there will be no current through R. O An induced current will flow from left to right in R.
Suppose a 57-turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page. The coil originally has an area of 0.270 m2. It is stretched to have no area in 0.110 s. What is the magnitude of the induced emf if the uniform magnetic field has a strength of 1.40 T? What is the direction of induced emf? CCW CW
Please Help ASAP!!!
1. Recall the induction example from lecture in which a resistanceless metal bar with length & slides to the right on metal rails with a constant speed v and the metal rails are connected to a resistor R. The entire system is placed in a uniform constant magnetic field with magnitude B pointing out of the screen. е R a) Use Lenz's last to determine the direction in which the induced current flows. b) In lecture we simply assumed the bar moves with constant speed v. Show that an external force is needed to ensure the bar travels right with constant speed and determine the magnitude of this force (Hint: there will be a magnetic force on the bar due to the current flowing through it). c*) Show that the power dissipated in the resistor equals the rate at which work is done on the bar by the external force.
In the diagram below, a bar magnet moves toward a solenoid. Use Lenz's а. Law to find the direction of the induced current in the solenoid and then determine the direction of current flow through the resistor connected to the solenoid. Motion N The direction of the current through the resistor is: A. upward B. downwards In the diagram below, a solenoid moves toward a bar magnet. Use Lenz's Law to find the direction of b. the induced current in the solenoid and then determine the direction of current flow through the resistor connected to the solenoid. Motion The direction of the current through the resistor is: O A. upwards B. downwards
Faradey’s law states that the EMF induced by a change in magnetic flux depends on the change in magnetic flux with respect to time and number of turns of coils. Mathematically it is defined like the figure. Why do we use ds in the line integral of Faradey’s law to calculate the electric field? Don,t copy from anywhere. Do all calculation step by step .Answer Must be correct.Read question all step.
A conducting wire loop of radius 12 cm, that contains a 4.0-2 resistor, is in the presence of a uniform magnetic field of strength 3.0 T that is perpendicular to the plane of the loop. If the magnetic field is turned off in a time of 0.50 s, what is the current induced in the loop? a. 52 mA b. 68 mA O c. 95 mA d. 117 mA O e. 168 mA
CAN YOU HELP WITH 4A AND SUBQUESTION 4B PLEASE 4a. Suppose a 42–turn coil lies in the plane of the page in a uniform magnetic field that is directed into the page. The coil originally has an area of 0.290 m2. It is stretched to have no area in 0.100 s. What is the magnitude of the induced emf if the uniform magnetic field has a strength of 1.70 T? 4b. What is the direction of induced emf? A. CCW B. CW THIS IS NOT AND WILL NOT BE GRADED
Enter an expression for the magnitude of the magnetic flux through the loop using the symbols in the palette below. Your expression must be valid at all times described in the problem statement.
You drop a magnet north pole side down from a height (h) into a loop of wire, inducing a current. Draw a graph showing how the induced current in the loop depends on time as the magnet falls through the loop. Does the magnitude of the induced current depend on h?

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