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September 22, 2026 How Engineering Works

Modern History of Himachal Pradesh

A detailed, exam-friendly study of the Modern History of Himachal Pradesh, covering Gorkha expansion, British influence, Praja Mandal movements, formation in 1948, administrative reorganisation, the 1966 merger of Punjab hill areas and full statehood in 1971.

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September 22, 2026 How Engineering Works

Medieval History of Himachal Pradesh

A clear, exam-focused study article on the Medieval History of Himachal Pradesh, covering Kangra, Chamba, Kullu, Mandi, Suket, Sirmaur, Bushahr, Bilaspur, Mughal relations, Sikh and Gorkha expansion, important dates and quick revision points.

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September 22, 2026 How Engineering Works

Ancient History of Himachal Pradesh

A detailed, exam-friendly study of the Ancient History of Himachal Pradesh, covering prehistoric settlement, early tribes, janapadas, Trigarta, Audumbaras, Kuluta, Kulindas, Mauryan influence, Gupta-period developments and key revision points.

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September 22, 2026 How Engineering Works

Himachal Pradesh General Knowledge (HP GK)

Himachal Pradesh General Knowledge (HP GK) Browse 12 topics from

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September 21, 2026 How Engineering Works

Waves and Sound: Definitions, Formulas, Types, and Everyday Applications

Learn the basics of waves and sound, including wave properties, sound waves, key formulas, solved examples, decibels, resonance, wave behaviours, and real-life applications.

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September 21, 2026 How Engineering Works

Magnetic Effects of Electric Current: Fields, Force, Motors and Electromagnetic Induction

Learn the magnetic effects of electric current from the basics, including magnetic fields, field lines, electromagnets, solenoids, force on current-carrying conductors, electric motors, electromagnetic induction and generators.

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