Chapter 5 of 10
Concept Maps
Magnetism And Electromagnetism — Concept Maps
Tamil Nadu Board · Class 9 · Science
3 concept maps of Magnetism And Electromagnetism for Tamil Nadu Board Class 9 Science, each also written out as a text outline.
42 questions25 flashcards5 concepts
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3 Concept Maps
Magnetism and Electromagnetism – Chapter Overview Mind Map
The map in words
- Magnetism and Electromagnetism
- Magnetic Field
- Symbol B
- Unit Tesla
- Region around magnet
- Earth has magnetic field
- Magnetic Field Lines
- N pole to S pole
- Never intersect
- Closed continuous loops
- Tangent gives direction
- Flux unit is Weber
- Magnetic Effect of Current
- Oersted 1820
- Current produces B field
- Perpendicular to current
- Right Hand Thumb Rule
- Force on Conductor
- Formula F equals BIL
- Lorentz Force
- Flemings Left Hand Rule
- Motor Rule
- Parallel Conductors
- Same direction Attract
- Opposite direction Repel
- Electric Motor
- Electrical to Mechanical
- Split Ring Commutator
- Left Hand Rule
- Armature coil
- Electromagnetic Induction
- Faraday 1831
- Change in flux induces EMF
- Three Experiments
- Lenz Law
- Right Hand Rule
- Electric Generator
- Mechanical to Electrical
- Slip Rings for AC
- Split Ring for DC
- Right Hand Rule
- Transformer
- AC only
- Step Up Ns greater Np
- Step Down Ns less Np
- Formula Np over Ns equals Vp over Vs
- Applications
- Electric Speaker
- Maglev Trains
- MRI Scanner
- Electric Bell
- Magnetic Field
Magnetism and Electromagnetism - Concept Overview
The map in words
- Magnetism and Electromagnetism
- Magnetic Fields
- Magnetic field concept
- Magnetic field lines
- Properties of field lines
- Magnetic flux
- Flux density
- Magnetic Effect of Current
- Oersted experiment
- Right hand thumb rule
- Magnetic field around wire
- Force on conductors
- Current and Magnets
- Force on current conductor
- Fleming left hand rule
- Parallel current conductors
- Attraction and repulsion
- Electric Motor
- Working principle
- Rotating coil
- Split ring commutator
- Speed control factors
- Electromagnetic Induction
- Faraday experiments
- Induced EMF
- Lenz law
- Fleming right hand rule
- Generators
- AC generator
- DC generator
- Slip rings vs commutator
- Induced current
- Transformers
- Working principle
- Step up transformer
- Step down transformer
- Voltage and current relationship
- Power transmission
- Applications
- Speakers
- Maglev trains
- MRI machines
- Electromagnets
- Magnetic Fields
Magnetism and Electromagnetism - Concept Overview
The map in words
- Magnetism and Electromagnetism
- Magnetic Concepts
- Magnetic Field B
- Direction
- Properties
- Field Lines
- Start North Pole
- End South Pole
- Never intersect
- Magnetic Flux
- Flux density
- Weber units
- Magnetic Field B
- Current and Magnetism
- Oersted Discovery
- Current produces field
- Right hand rule
- Parallel Conductors
- Same direction attract
- Opposite direction repel
- Force on Conductor
- F equals ILB
- Fleming left rule
- Oersted Discovery
- Electromagnetic Devices
- Motors
- Convert electrical
- Coil rotation
- Generators
- AC and DC types
- Electromagnetic induction
- Transformers
- Step up voltage
- Step down voltage
- Motors
- Practical Applications
- Industrial
- Electromagnets
- Maglev trains
- Medical
- MRI machines
- Diagnostic tools
- Household
- Speakers
- Electric motors
- Doorbells
- Industrial
- Magnetic Concepts
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Explore DiagramsFrequently Asked Questions
What are the important topics in Magnetism And Electromagnetism for Tamil Nadu Board Class 9 Science?
Key topics in Magnetism And Electromagnetism include Magnetic Field and Magnetic Field Lines, Magnetic Effect of Current – Oersted's Discovery, Force on a Current-Carrying Conductor in a Magnetic Field, Force Between Two Parallel Current-Carrying Conductors. Study these first, then practise questions on each for Class 9 exams.
What do the concept maps for Magnetism And Electromagnetism show?
The 3 maps show how the ideas in Magnetism And Electromagnetism connect: Magnetism and Electromagnetism – Chapter Overview Mind Map; Magnetism and Electromagnetism - Concept Overview. Each map is also written out as an outline on this page.
How should I revise Magnetism And Electromagnetism for Class 9 exams?
Learn the core ideas first, then work through the 42 practice questions on Magnetism And Electromagnetism. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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