Variation of Resistivity with Temperature | Class 12 Physics Current Electricity | CBSE 2025-26
Автор: Mandeep Education Academy
Загружено: 2025-08-19
Просмотров: 925
Описание:
In this Class 12 Physics video (Chapter 3 – Current Electricity), we explain the variation of resistivity with temperature in detail.
Electrical resistivity of a material does not remain constant — it changes with temperature. This concept is very important for Class 12 CBSE Board Exams (2025-26) and competitive exams like JEE & NEET.
📌 Topics Covered:
✔️ Temperature dependence of resistivity (ρ)
✔️ Metals vs semiconductors vs alloys
✔️ Linear relation of resistivity with temperature
✔️ Temperature coefficient of resistivity (α)
✔️ Graphs of ρ vs T for different materials
✔️ Applications and exam tips
💡 Very useful for Class 12 CBSE, ISC, State Boards, JEE & NEET preparation.
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