How does a solenoid behave like a bar magnet?
Answer framework: Describe field pattern, poles, uniform internal field and dependence on current direction.
All Class 10 Science notes
Chapter 12 • Physics
Magnetic Effects of Electric Current
Relate current to magnetic fields, apply field rules, explain force on conductors, motors, induction, generators and domestic circuits.
Core concepts checklist
Magnetic field and field lines
Field due to straight conductor, loop and solenoid
Force on a current-carrying conductor
Electric motor and electromagnetic induction
Generator, domestic circuits and safety
Formula & fact bank
Right-hand thumb rule: current → field direction
Fleming's left-hand rule: motor force
Fleming's right-hand rule: induced current
P = VI for appliance load
Diagrams to practise
Draw with pencil, use straight label lines, add arrows and write a precise caption.
- 1Fields around wire, loop and solenoid
- 2DC motor
- 3AC generator
- 4Domestic electric circuit
CBSE examiner focus
- Use the correct Fleming rule for motor versus generator
- Label split rings/slip rings and brushes correctly
- Explain fuse, MCB and earthing by function
Board-style practice
Explain the principle and working of an electric motor.
Answer framework: State force principle, label armature/magnet/split ring/brushes, and explain current reversal each half turn.
Turn revision into marks with Eduvista
Use this guide for recall, then practise timed answers and get feedback. Eduvista combines visual notes, NCERT clarity, board-pattern tests and personal doubt support.