Electric Power Class 10 Physics | Complete Explanation, Formulas, Units & Derivations

Electric Power Class 10 Physics | Complete Explanation, Formulas, Units & Derivations (NCERT Electricity)

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Complete explanation of Electric Power from Class 10 Physics (NCERT Electricity Chapter).
This video covers definitions, derivations, formulas (VI, I²R, V²/R), units (Watt, Kilowatt), commercial unit of energy (kWh), and conversion to Joule—explained step-by-step exactly the way exams require.

Also includes quick questions asked in the video:
✔ Resistance का unit?
✔ Resistivity का unit?

Perfect for CBSE Class 10, board revision, and fast concept clarity.
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📌 Timestamps
00:00 – Introduction to Electric Power
00:00:11 – Question: Resistance का unit? (Comment prompt)
00:00:26 – What is Electric Power?
00:00:47 – Power = Energy / Time
00:01:14 – Definition of Electric Power
00:01:20 – Recall: Potential Difference (V = W/Q)
00:01:48 – Deriving Work Done: W = VQ
00:02:53 – Deriving Power Formula: P = VI
00:03:39 – Unit of Power: Watt
00:04:00 – Definition of 1 Watt
00:05:47 – Larger Unit of Power: Kilowatt
00:06:19 – Power → Energy Relation (P × t)
00:06:45 – Watt-hour as a Unit of Energy
00:07:19 – Commercial Unit: Kilowatt-hour (kWh)
00:07:43 – Converting kWh to Joules
00:09:13 – Question: Resistivity का unit? (Comment prompt)
00:09:36 – Power: All Formulas
00:10:17 – Derivation using V = W/Q
00:10:48 – Formula 1: P = VI
00:11:13 – Formula 2: P = I²R
00:11:33 – Formula 3: P = V²/R
00:12:10 – Conclusion & Playlist Suggestion


PLAYLIST LINK

Class 10 Electricity(2025) | CBSE NCERT | Complete Chapter Explanation in Hindi:    • Class 10 Electricity(2025) | CBSE NCERT | ...  

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