I need help on part C of this question. I know the answer (after picking all the wrong answers first), but why? Doesn't the force of a magnetic field get stronger as you get closer to the magnet? That's been my experience with magnets, anyway. Even if there were an argument for it staying the same, how could it possibly get weaker? And then, when you finally get the right answer after randomly picking all the wrong answers, it says it's talking about inside the solenoid. But everyone knows that if you put iron in a solenoid, the magnetic field gets much stronger. But no. They say the force is weaker. So I'm completely lost. A solenoid is near a piece of iron, as shown in the figure. If a current isturned on in the solenoid, a magnetic field is created. This magnetic field willmagnetize the iron, and there will be a net force between the solenoid andthe iron. (Figure 1)FigureCurrent in solenoidis clockwise asviewed from theright end.-Piece of iron islined up with theaxis of thesolenoid.1 of 1Part BSuppose this force moves the iron. Which way will the iron move?To the left towards the solenoid.To the right towards the solenoid.SubmitCorrectHere we determine the direction of movement of the magnetized ferromagnetic.Part CPrevious AnswersAs the iron moves, what will happen to the strength of the force?It will not change.It will increase.It will decrease.SubmitPrevious AnswersCorrectHere we learn how to determine how does the magnetic force exerted on a magnetic dipole change as it moves inside the solenoid.

( The student ask only for part c, so we will answer only part c) Answer : As iron goes very near…

Answered: Figure Current in solenoid is clockwise…

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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I need help on part C of this question. I know the answer (after picking all the wrong answers first), but why? Doesn't the force of a magnetic field get stronger as you get closer to the magnet? That's been my experience with magnets, anyway. Even if there were an argument for it staying the same, how could it possibly get weaker? And then, when you finally get the right answer after randomly picking all the wrong answers, it says it's talking about inside the solenoid. But everyone knows that if you put iron in a solenoid, the magnetic field gets much stronger. But no. They say the force is weaker. So I'm completely lost.

A solenoid is near a piece of iron, as shown in the figure. If a current is
turned on in the solenoid, a magnetic field is created. This magnetic field will
magnetize the iron, and there will be a net force between the solenoid and
the iron. (Figure 1)
Figure
Current in solenoid
is clockwise as
viewed from the
right end.-
Piece of iron is
lined up with the
axis of the
solenoid.
1 of 1
Part B
Suppose this force moves the iron. Which way will the iron move?
To the left towards the solenoid.
To the right towards the solenoid.
Submit
Correct
Here we determine the direction of movement of the magnetized ferromagnetic.
Part C
Previous Answers
As the iron moves, what will happen to the strength of the force?
It will not change.
It will increase.
It will decrease.
Submit
Previous Answers
Correct
Here we learn how to determine how does the magnetic force exerted on a magnetic dipole change as it moves inside the solenoid.

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