In olden days, electricity and magnetism were treated as separate subjects. Electricity dealt with charges on glass rods, cat’s fur, batteries, lightning, etc., while magnetism described interactions of magnets, iron filings, compass needles, etc. In 1820 Danish scientist Oerst...

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What should be the aim behind study of Physics. ?
[a] To acquire knowledge and understanding of the terms, facts, concepts, definitions, laws, principles and processes of Physics.

[b] To develop skills in practical aspects of handling apparatus, recording obse...

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General Introduction to Physics - For class IX - ICSE - Board students Only. 1. Examination Pattern. 2. Detailed Syllabus 3. Practical Assessment.

General Introduction-PDF.pdf

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Check your knowledge. Understand and discuss the following notes. Most Imp for K-12 CBSE/ICSE students and NEET/JEE Aspirents.

An oil drop of 12 excess electrons is held stationary under a constant electric field of 2.55 × 104 NC–1 (Millikan’s oil drop experiment). The density of the oil is 1.26 g cm–3. Estimate the radius of the drop. (g = 9.81 m s–2; e = 1.60 × 10–19 C).



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An electric dipole with dipole moment 4 × 10–9 C m is aligned at 30°. with the direction of a uniform electric field of magnitude 5 × 104 NC–1.Calculate the magnitude of the torque acting on the dipole.

***. Numerical Problem for K-12 and NEET/JEE aspring student...

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