Page 1: Introduction
Oersted discovered current produces magnetic field.
Magnetic field: region where magnetic force experienced.
Field lines: closed curves, direction by compass.
Page 2: Magnetic Field due to Straight Conductor
Concentric circles.
Right-hand thumb rule: thumb current, fingers curl field direction.
Page 3: Magnetic Field due to Circular Loop
At centre perpendicular to plane.
Field stronger at centre.
Page 4: Solenoid
Like bar magnet.
Field uniform inside, weak outside.
Right-hand rule for polarity.
Page 5: Force on Current-Carrying Conductor
Fleming’s left-hand rule: forefinger field, middle current, thumb force.
Page 6: Electric Motor
Principle: force on current in magnetic field.
Parts: armature, brushes, split ring commutator.
Rotation due to torque.
Page 7: Electromagnetic Induction
Induced emf when magnetic flux changes.
Fleming’s right-hand rule: thumb motion, forefinger field, middle induced current.
Page 8: Electric Generator
Principle: electromagnetic induction.
AC generator: slip rings.
DC generator: split ring commutator.
Page 9: Key Rules Summary
- Right-hand thumb rule
- Fleming’s left-hand rule (motor)
- Fleming’s right-hand rule (generator)
Page 10: Practice Questions - Easy (1-10)
- Oersted discovery.
- Field lines property.
- Right-hand thumb rule.
- Fleming left-hand rule.
- Solenoid field like?
- Electric motor principle.
- Electromagnetic induction.
- Fleming right-hand rule.
- AC vs DC generator difference.
- Commutator function.
Page 11: Practice Questions - Medium (11-20)
- Explain magnetic field straight wire.
- Force on conductor in field.
- Working of electric motor.
- Induced current direction rule.
- Generator principle.
- Solenoid vs bar magnet.
- Factors affecting field strength solenoid.
- Role of split ring.
- Diagram description motor.
- Why soft iron core in electromagnet.
Page 12: Practice Questions - Hard (21-30)
- Explain working of DC motor detailed.
- AC generator vs DC generator.
- Electromagnetic induction applications.
- Board level diagram motor/generator.
- Factors affecting induced emf.
- Commercial motor improvements.
- Electromagnet vs permanent magnet.
- Direction of force numerical type.
- Real-life uses.
- Faraday’s experiments hint.
Page 13: Hand Rules Summary
All three rules with fingers.
Page 14: Common Mistakes
- Wrong hand rule
- Confusing motor and generator
- Forgetting commutator
- Wrong field direction
- Mixing left and right rule
Page 15: Previous Year Questions
Rules, motor working, generator difference.
Page 16: Exam Tips
- Draw labelled diagrams
- State rules clearly
- Explain working step by step
- Distinguish motor and generator
- Memorise hand rules
Page 17: Quick Revision Sheet
All rules, devices.
Page 18: Final Motivation
Chapter 13 complete! Magnetic Effects is diagram-based.
Master hand rules and working.
Class 10 Science unstoppable 🦖
Page 19: Extra Diagrams
Motor, generator, solenoid.
Page 20: Hand Rules
Detailed description.
Page 21: Motor Working
Step by step.
Page 22: Generator Types
AC vs DC.
Page 23: Board Pattern
Common questions.
Page 24: Extra Practice
More questions.
Page 25: Applications
Motors, generators, electromagnets.
Page 26: Field Lines
Properties and diagrams.
Page 27: Thank You & Copyright
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