Concept Map โ€” Chapter 4

Last updated at June 5, 2026 by

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Electricity Magnetic and Heating Effects 4.1 Magnetic Effect Current makes a magnet 4.2 Heating Effect Current makes heat 4.3 Batteries Cells make electricity Electromagnets Coil + iron core Lifting Magnets Cranes, scrap yards Resistance & Heat Nichrome, appliances Voltaic Cell Metals + electrolyte Dry Cell Single use, paste Rechargeable Batteries Used many times, Li-ion
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CA Maninder Singh is a Chartered Accountant with 16+ years of practical experience and 20+ years of teaching experience. At Teachoo, he simplifies Accounts, Tax and GST with step-by-step examples so students can apply concepts confidently in exams and real life.

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