9 now start with the wire loop on the far left side of the...

Name: 9 now start with the wire loop on the far left side of the animation slowly and steadily move it horizontally all the way to the right side of the animation passing over the green wire try t 93682
Uploaded: 2022-04-03T14:13:03-08:00
Duration: 3 min 47 s
Channel: Frank Deng
Description: 9 now start with the wire loop on the far left side of the animation slowly and steadily move it horizontally all the way to the right side of the animation passing over the green wire try t 93682

9) Now start with the wire loop on the far left side of the animation. Slowly and steadily move it horizontally all the way to the right side of the animation passing over the green wire. Try to move the wire loop at a constant speed all the way accross. (For this part you may want to start when the voltage starts graphing on the left side and then pause the animation when you are finished, so you can answer the next several questions) What kind of voltage is induced in the wire loop? Positive, zero, negative Positive, negative, positive Negative, positive, negative Negative, zero, negative Negative, zero, positive

Transcript

00:01 So in this question, you have a magnetic field and a single square coil of wire, which enters this core year, sorry, enters this magnetic field region, and then comes out.

00:19 And as it enters the magnetic field, obviously, it will produce electromagnetic force, and then as it goes out, it will also produce electromagnetic force.

00:30 But when it's in total inside the region, of course it does not produce any of the first.

00:34 And the electromagnetic force as a function of time is plotted in this graph, right? so you're asking to inform the direction of moving, direction of motion of this core year.

00:52 Is it moving from left to right? or they are all from right to left.

00:58 Or is from this way up or from up to the bottom.

01:05 Actually, it could only have one possibilities.

01:09 Now, actually, i would try for example, i would go with for example, let's assume that this wire actually going from, let's say, this direction, okay, from left to right.

01:21 Let's suppose this wire is going this way.

01:25 And then if you look at a charge, for example, positive charge in the wire, and you know, the charge will be carried with a velocity in this direction, right? and if it has a velocity v in this direction, and if this charge at the same time, you know, your magnet field, which is actually going into this paper plan, which is in this direction, let's say, b.

01:51 And you know that this charge will experience a lorentz force, which is given by a v cross b, right? if you do the cross, you think you right -hand rule, and you'll see that there was a force acting, the law and force is acting on this charge and try to move it upward.

02:10 So that is actually arranging of the election motor force.

02:14 Of course, you can also work it out by lentz law, but this is the simplest way to work out this electric motor force.

02:19 And you see the election first actually is going upward that is under counterclockwise...

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