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Part 1_Taking Elements (JEEPhysics)_Eduniti.pdf
8. Formulae Revision Series
TAKING ELEMENTS-PART 1
General Tool for Physics
PhD SERIES
Major Issues:
1. When to take Elements ?
2. How to take Elements ?
3. How to Integrate and put
Limits ?
Almost All
List of Chapters in which this CONCEPT can be applied
1. COM
2. Rotational Motion (MOI, Torque)
3. Gravitation
4. Solids & Fluids
5. Thermal Properties
6. Wave Motion
7. Electrostatics & Capacitors
8. Current Electricity
9. Magnetism & EMI
10. Ray Optics
List of Typical Element Taking Approach:
1. Rod (along the length)
2. Arc of a Circle
3. Part of a Disc
4. Hollow Hemisphere / Sphere
5. Solid Hemisphere / Sphere
6. Cuboidal Solid/Hollow Cone and
Frustum of a Cone
ROD (Along the Length)
Generally in such questions a parameter
Like Linear mass density or Linear charge
Density is defined.
Arc of a Circle
Part of a Disc
Hollow Hemisphere
Solid Hemisphere
Solid Sphere
Cuboidal
Solid / Hollow Cone
Frustum of a Cone
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