Thank you,, I like the way you determined the direction of a current at the end of the video,, by showing up yourself
@stepbystepscience
2 жыл бұрын
My pleasure, glad you liked it!
@scienceathome4426
5 жыл бұрын
Beautifully explained.
@faichalayeva3677
5 жыл бұрын
Thank you, sir. I also loved how the video showing your face appeared.
@stepbystepscience
5 жыл бұрын
Technology is amazing isn't it.
@kushalMatharoo
3 жыл бұрын
@@NiteshSingh-ke2vx 😂
@najimbacha7469
5 жыл бұрын
sir. you deserve 1B View And 50M Subscriber. Thank you. Gracias
@historyguy8353
3 жыл бұрын
Absolutely!
@KaranAroraM-
3 жыл бұрын
@@historyguy8353 haat beekar
@gardenmenuuu
3 жыл бұрын
you are so awesome sir,which board or software is it?its so neat and very good to use,can u reply sir?
@stepbystepscience
3 жыл бұрын
Thanks for the nice comment...Everything is made in Apple Keynote, nothing fancy.
@gardenmenuuu
3 жыл бұрын
@@stepbystepscience is it app for apple phones or is it a software i can use in windows too?
@scottsledge6041
3 жыл бұрын
I'm a little confused on how you solved for the area of the loop on the first problem. You used the formula for the area of a circle, but if the wire is a loop with a 12 cm diameter, wouldn't you need to know the cross sectional area of the wire, then multiply that times the circumference of the circle? Why are we counting the "area" of the loop where there is no wire present?
@stepbystepscience
3 жыл бұрын
I do not fully understand your question. It is a round loop of wire with a diameter of 12 cm. The area is therefore pi x r2.
@scottsledge6041
3 жыл бұрын
@@stepbystepscience The area of a circle is pi x r2; which would be fine if this was a "disc" of copper and not a "loop" of copper wiring, because the area for Faraday's formula is only the area of the copper itself, so you need to solve it by using the cross sectional area of the wire multiplied by its length. What you're doing is solving it as though all the empty space (i.e., the "hole" in the donut shape of the loop) is also solid copper.
@stepbystepscience
3 жыл бұрын
@@scottsledge6041 The magnetic field goes through the round loop enclosed by the copper wire. Therefore the flux is the amount of magnetic field that is in the area enclosed by the copper wire. The is why the equation is Area x Magnetic Field Strength.
@stepbystepscience
3 жыл бұрын
@@scottsledge6041 It is not the cross.sectional area of the wire.
@AbdellouahedCheji
5 ай бұрын
I have a question for you. Does a test charge at rest in variable magnetic flux start to move due to the electrical field created by this variable magnetic flux. Would appreciate it if you clarify which or not this test charge start to move or vibrate .
@monar1284
4 жыл бұрын
great video, but what is the direction of the induced emf in question 2?
@송바른-i5s
5 жыл бұрын
why is the answer in number 2 is positive? can you tell me how did you calculate it
@Swaglordjesuz
2 жыл бұрын
in the 2nd problem if final - initial then why is your answer not a negative? please respond great video btw
@dzhwar1356
6 жыл бұрын
well done keep going the important lessons in physic .thanks
@stepbystepscience
6 жыл бұрын
Thanks for the encouragement.
@dzhwar1356
3 жыл бұрын
@@NiteshSingh-ke2vx what , bro
@dzhwar1356
3 жыл бұрын
wow i wrote this comment 2 years ago omg 😱
@KaranAroraM-
3 жыл бұрын
@@dzhwar1356 haat teri
@KaranAroraM-
3 жыл бұрын
@@NiteshSingh-ke2vx tu pagal hai
@michaelgeragotelis5784
5 жыл бұрын
Love your lectures. I have a question for the 4# problem. The question says that the field increases 1.8 T and not to 1.8 T. So isn't the the final field value 2.4 T if it started at .6 T?
@stepbystepscience
5 жыл бұрын
I left the "to" out of the text in the problem, but I do say it that way in the video. So the text should say that the magnetic field increases "to 1.8 T". Sorry for the confusion.
@michaelgeragotelis5784
5 жыл бұрын
@@stepbystepscience Thanks for the quick reply. When I did the problem I completely ignored what it started at and just computed an increase of 1.8 T and was wondering what was going on for a second. Again thank you and have a great night.
@bigbenthegoat8090
11 ай бұрын
good video!
@stepbystepscience
10 ай бұрын
Thanks!
@Kajalouie
5 жыл бұрын
for number two why isn't the answer negative?
@stepbystepscience
5 жыл бұрын
It should be minus
@poganpagan
4 жыл бұрын
Hello, first great explanation, but in the 3rd and 4th problem the strength of the magnetic field INCREASES over the period of n seconds, not jumping. So I think you need to integrate it 😇, or im wrong ?
@stepbystepscience
4 жыл бұрын
If it is a constant linear rate of increase then you do need to integrate.
@poganpagan
4 жыл бұрын
@@stepbystepscience Okay thanks 😇
@thechristianlines
3 жыл бұрын
Thank you very much 🙏
@stepbystepscience
3 жыл бұрын
You're most welcome
@KaranAroraM-
3 жыл бұрын
Haat
@parllanpoppi3217
3 жыл бұрын
You might need this practice problem about Faraday's Law. kzitem.info/news/bejne/0ZWX2oKDfYh3l4Y
@mysteriousyounglady8990
3 жыл бұрын
Great vid but am confused in the first problem -0 wb * 10 to the power neg 2 is equal to neg 2.please answer. But u said it's 8.?
@stepbystepscience
3 жыл бұрын
I am very sorry but I do not understand your question. -0 wb * 10 to the power neg 2 is equal to neg 2, this does not make sense to me.
@lakshmiprasanna333
3 жыл бұрын
I can't understand how u got 0.06m but In question u gave diameter of 12 can u explain me sir
@stepbystepscience
3 жыл бұрын
The diameter is given as 12 cm. For the equation you have to use the radius and it must be in meters. Half of 12 cm is 6 cm and 6 cm written in meters is 0.06 m. Does that help?
@lakshmiprasanna333
3 жыл бұрын
Yeah that helped me
@jstroner
4 жыл бұрын
Excellent videos.
@stepbystepscience
4 жыл бұрын
Thank you very much!
@iupendar1778
Жыл бұрын
Thanks
@stepbystepscience
Жыл бұрын
Welcome
@aimenmaqbool4671
3 жыл бұрын
In Last 4th example. Area is perpendicular to the megnetic deild then why angle is not zero
@ianbaguio4690
Жыл бұрын
how did yu get the 100 soory im to this pleas explian
@stepbystepscience
Жыл бұрын
In the question for example (2) it says, A rectangular coil of wire with 100 windings.... So that number is given as the number of windings. Does that help?
@mylifeisalittleworthless4067
2 жыл бұрын
Does it make a difference if I use sine instead of cosine?
@stepbystepscience
2 жыл бұрын
Yes, they are different from each other
@thosecrazykidz200
5 жыл бұрын
Sir, for problem #3, how come the value for the resistance wasn't used? And is there a formula where the resistance is incorporated to find the EMF?
@josephjoe9525
2 жыл бұрын
I don't think the value of the resistance must be included in the equation because I think it is already incorporated in the graph shown.
@OkpakoEgbarogheneGodspower
5 ай бұрын
I don't know how u got 0.036wb plz it's urgent
@stepbystepscience
5 ай бұрын
You just multiply 0.2 x 0.12 x 1.5 and you get 0.036 Wb. Did you get something else?
@Skittix447
4 жыл бұрын
Thanks man
@stepbystepscience
4 жыл бұрын
You are very welcome!
@michaellamoreaux4402
3 ай бұрын
I have discovered that Faraday's law of induction is unintentional disinformation. In the case of a static magnetic field, if a circuit linked by the field expands, thereby increasing the flux linking the circuit, Faraday's law states that the changing flux produces an emf in the circuit. This is false; the changing flux linkage has no effect. There is an emf in the circuit of the same value as predicted by Faraday's law. It is motional emf due to the motion of the conductor of the circuit through the magntic field. Thus, Faraday's law is false. There are also exceptions to Faraday's law, as pointed out in The Feynman Lectures on Physics. Faraday's law is just math, not physics. It is a case of correlation, not causation. Faraday's law encompasses the Maxwell-Faraday law, which is one of Maxwell's equations. That part is true. That is why Faraday's law is like disinformation. It is partially true and partially false.
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