Chapter 1 ELECTRIC CHARGES AND FIELDS
Screen Readable NCERT Class 12 Physics for blind and visually impaired students.
This Chapter is planned, organized and described by Dr. T K Bansal for visually impaired and blind students. All efforts have been made to make the chapter fully accessible by providing headings, describing figures and tables. The Chapter has been so designed that the students should enjoy studying this chapter and should move forward without any hurdles. The chapter has been thoroughly checked for any mistakes, still if you find any mistakes or have any suggestions to make it better, please write to us at ‘ blind2Visionary@gmail.com ‘. Your efforts will be highly appreciated.
Table of symbols used in this chapter:
Symbol | Known As | Used For | Description |
---|---|---|---|
− | Minus | Subtraction | A dash sign |
× | Times | Multiplication | A normal cross sign |
μ | Mue | Micro | A Greek letter |
÷ | Divided by | Division | One Dot above and below a dash sign |
~ | Tilde | A wave like line | |
π | Pi | = circumference of a circle/diameter | A Greek letter |
Ε | Epsilon | Permittivity of medium | A Greek letter |
′ | Prime | To make variables different | A normal ‘ sign. |
″ | Double prime | To make variables different | Like a “ sign |
Σ | Sigma | Summation | Capital Greek letter sigma |
√ | Square root | Square root | A radical sign |
∠ | Angle | Angle | 2 small lines meeting on the left side |
→ | Rightwards arrow | Corresponds to | A rightwards arrow |
Δ | Delta | A small increase | Like a small triangle |
Ω | Omega | A Greek letter | |
Θ | Theta | Angle | A Greek letter |
Φ | Phi | Electric flux | A Greek letter |
≅ | Approximately equal to | Approximately equal to | A tilde over = sign |
± | Plus or minus | Plus or minus | A + over a - |
Τ | Tau | Torque | A Greek letter |
Σ | Sigma | Surface charge density | Small Greek letter |
λ | Lambda | Linear charge density | A Greek letter |
ρ | ro | Volume charge density | A Greek letter |
Α | Alpha | Angle | A Greek letter |
° | Degrees | Degrees | A small circle in superscript |
≥ | Greater than or equal to | Greater than or equal to | A dash below a > sign. |
⋅ | Dot operator | Dot product of vectors | A normal dot sign |
⨯ | Vector or cross product | Cross product of vectors | A normal cross sign |
∫ | Integral | Integration | An elongated capital S |