Electromagnetism ||Class 10 ||ONE SHOT VIDEO ||Full Chapter ||
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Unit A(Part-1): • Electromagnetism ICSE ...
Unit A(PART-2): • ICSE Physics |Class 10...
Unit B : • ICSE PHYSICS |CLASS 10...
Unit C (Part-1): • Electromagnetism|Lenz'...
Unit C: Part 2): • Electromagnetism ||AC ...
Unit C (Lenz's law): • Electromagnetism|Lenz'...
Unit C (TRANSFORMER): • ELECTROMAGNETISM ||Tra...
NUMERICALS: • ELECTROMAGNETISM ||Tra...
Electromagnetism is a branch of physics involving the study of the electromagnetic force, a type of physical interaction that occurs between electrically charged particles.
Magnetism is created when electricity flows through metals. The magnetic force starts when the electricity flows, and stops if the electric current is disconnected. This kind of magnetism is called electromagnetism, and it is very useful for making magnets that can be switched on and off.
, AB is a wire lying in the north- south direction and connected to a battery through a rheostat and a tapping key. A compass needle is placed just below the wire. It is observed that
that a current carrying wire produces amagnetic field around
Right hand thumb rule determines the direction of magnetic field around a current carrying wire.
It states that if we hold the current carrying conductor in right hand such that the thumb points in the direction of flow of current, then the fingers encircle the wire in the direction of the magnetic fields lines.
ELECTROMAGNETIC INDUCTION:
Whenever there is a change in the number of magnetic field lines linked with a conductor, an electromotive force (e.m.f.) is developed between the ends of the conductor which lasts as long as there is a change in the number of magnetic field lines through the conductor. This phenomenon is called the electromagnetic induction.
Faraday formulated the following two laws of electromagnetic induction -
Whenever there is a change in magnetic flux linked with a coil, an e.m.f. is induced. The e.m.f. induced lasts so long there is a change in the magnetic flux linked with the coil.
The magnitude of e.m.f. induced is directly proportional to the rate of change of magnetic flux linked with the coil. If magnetic flux changes at a constant rate,a steady emf is produced
The magnitude of induced e.m.f. in a coil depend on following two factors -
The rate of change in magnetic flux with each turn of coil, and
The number of turns in the coil.
When a conductor is moved in a varying magnetic field, then Fleming's right hand rule determines the direction of current induced in the conductor.
Fleming's right hand rule - Stretch the thumb, central finger and forefinger of your right hand mutually perpendicular to each other. If the forefinger indicates the direction of magnetic field and the thumb indicates the direction of motion of the conductor, then the central finger will indicate the direction of induced current.
According to Lenz's law, the direction of induced e.m.f. (or induced current) is such that it opposes the cause which produces it.
Lenz's law is based on the law of conservation of energy. It shows that the mechanical energy is spent in doing work against the opposing force experienced by the moving magnet, and it is transformed into the electrical energy due to which current flows in the solenoid.
An A.C. generator is a device which converts the mechanical energy into the electrical energy using the principle of electromagnetic induction.
Principle - In a generator, a coil is rotated in a magnetic field. Due to rotation, the magnetic flux linked with the coil changes and therefore an e.m.f. is induced between the ends of the coil. Thus, a generator acts as a source of current in an external circuit containing load when connected between the ends of it's coil.
Use - We use a.c. generator in our house as an alternative source of electricity when electric supply from mains is not available.
Thanks to @ProfKNageshwar @physicsgalaxyworld@sachinsirphysics @PhysicsWallah@phy @PradeepKshetrapal @manojmalikphysics8393
17:58 sir it is clock wise.
That's really great dear
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Thank you sir you are the only one who explains in English I am very happy and I can understand the lesson very well 😊
That's really glad to hear dear. Thanks for watching and supporting our channel.if any doubts can mention. Hope you will share our videos with ur frds to support our channel to grow 😊. All the best dear
Sir why is magnetic compass deflected towards west when placed below conductor and east when placed above conductor?
17:56 Answer:- direction of the magnetic field is clockwise, sir
18:05 clockwise
Wonderful dear, keep it continue.
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14:25 right hand thumb rule
Sir, can you make a playlist for class 10, including numericals from all chapters sir as it feels difficult to learn and practice every sum from textbook
Bro what a 💡
sir in 35:54 how is the current entering in clockwise direction sir, when i use the right hand thumb rule it shows its anticlockwise
please respond sir and thank you for your time 🙏
Hello dear,
Will get back to you by tomorrow.
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@@physicsplaza9017 sir i found it out sir i was mistaken by the arrow marks on the bar magnet as i tried matching my right hand along the curvature of the direction of wire instead of the general direction which is up
anyway thank you for you time sir and awesome video as always
Thanks for the video sir. Wonderful explanation 👏 👌 👍
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Thank you so much sir 🙏🙏
Could you also plz give link for refraction through lens oneshot video
I rlly searched a lot for it but couldn't find it
Hello dear, in a couple of days it will be uploaded. Due to busy schedule, we couldn't make it. Thanks for watching and supporting our channel.if any doubts can mention. Hope you will not forget to share this video with your friends.
All the best dear 😊
Thanks sir . This helped me alot . I have board exams on 4 march
Wish you a All the very best my dear.
Hope you will do the exam best.
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sir your videos are reallly the best for last moment studies i have watched nearly all your videos and it cleared my concepts better sir can you please upload numerical video on work power energy
sir can u also make one shot video on sound chapter ? sir i am asking as boards are nearing. please sir. your the best teacher sir and i hv recommended my low achiever friends to watch your video
Hello dear Roopa, Definitely will be uploaded in couple of days. Thanks for watching and supporting our channel.if any doubts can mention dear. Dint worry dear,we will be there to support you.All the best dear 😊
Sir what makes the coil to turn in DC motor?
Couple acts on coil,due to which it is rotated.
ok sir thank you
Sir you taught really well. After seeing 8 lectures on electromagnetism I was not able to understand the concepts but your video made me understand all the concepts ❤
Hello dear Sanjay,that's really glad to hear.
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Sir can you make a video on assertion reasoning questions on physics because from this year ICSE has changed the pattern of the paper now there are more critical based thinking questions asked in our board paper. Please sir 🙏
@sanjaysaxena924 Definitely dear,Will make it
@@physicsplaza9017can I get your email address ?
Saxena🤣🤣
Thank you so much, sir! Love the way you teach and how you cover all the concepts in the book in detail
Your videos are very helpful, keep it up 🙏🏼🙏🏼🙏🏼
Hello dear Rupali. Thanks for watching and supporting our channel. If any doubts can mention. Hope you will suggest our Channel to your friends and juniors to support our channel to grow. All the best dear
Sir transformer numericals are out of syllabus right
Yes dear,
Just for information,solved.
Next might be included.
If iam not wrong,I mentioned that this year numericals on transformer are not there
good afternoon sir
in textbook exercise 10a question no 21 the direction of polarity of x is south no sir and y is north no sir ,but in answer he has given x as north and y as south
sir is it true that physics paper is becoming difficult year by year ??
It's not like that dear. If we prepare well it is easy,if not tough.
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sir can you make a video on all the important questions and numericals for our boards
Hello dear, Definitely we will try to do.
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Sir you can make one shot video in current electricity and calorimetery which feels very though and make video to important chapter to focus on board exam you are the best teacher only 32days left for board exam iam depended on you sir
- By SV Shyam
Hello dear Shyam, already Current Electricity and CALORIMETRY one shot videos were uploaded, kindly check the playlist.
Current Electricity One Shot video:
th-cam.com/video/32rsMAvDfQM/w-d-xo.html
Calorimetry One shot video: th-cam.com/video/MGfZ0qa4-o4/w-d-xo.html
If any doubts u also can contact us through what's up dear
Sir i can understand can you please explain according to the book written line by line
In class 10th physics ICSE.sir you have not done the part (D): magnifying glass and application of lenses in chapter:(5) refraction through lens please do sir 🙏🙏.
Hello dear,
Will cover
Sir I massaged you to your whatsApp number.sir you did not reply sir😔
Thank you so much Sir
Thanks for watching and supporting our channel.if any doubts can mention dear. Hope you will suggest our channel to your friends and juniors to support our channel to grow 😊. All the best dear 😊
clockwise
Dear Akshitha,keep it continue.
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Thank you soo much sir
My board exam is coming soon, and physics has gotten easy only because of you sir
Hello dear Syrenia, thanks for watching and supporting our channel.if any doubts can mention. All ways we will be there to support. Hope u won't forget to share this video with your friends.
All the best dear 😊
sir
give me food aaaaa ok
but i love youe videos
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