Chapter 3 Current Electricity - NCERT Class 12 Physics
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Chapter 3 CURRENT ELECTRICITY
Chapter 3 CURRENT ELECTRICITY
NCERT Class 12 Physics - for blind and visually impaired students.
This Chapter is planned, organized and described by Dr. T K Bansal for blind and visually impaired 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 ‘ or leave your comments at www.blind2visionary.org. Your efforts will be highly appreciated.
Table of symbols used in this chapter:
| Symbol | Known as | Used for | Description |
|---|---|---|---|
| − | Minus | Subtraction | Like a normal dash sign |
| Δ | Delta | A small increase | Like a small triangle |
| ≡ | Identical to | Identical to | |
| → | Rightwards arrow | Corresponds to, or, tends to | A rightwards arrow |
| Ω | Omega | Ohm, a unit of resistance | A Greek letter |
| ∝ | Proportional to | Proportional to | |
| Ρ | Ro | Resistivity | A Greek letter, looks like letter p |
| Σ | Sigma | Conductivity | A small Greek letter |
| Τ | Tau | Relaxsation time | A Greek letter, looks like t |
| Μ | Mue | Mobility | Greek letter mue |
| Α | Alpha | Thermal coefficient of resistivity | Greek letter alpha |
| Φ | Phi | Potential gradient | Greek letter |
| ⋅ | Dot operator | Dot or scalar product of vectors | A normal dot sign. |