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12th Notes

Biot-Savart’s law

State and explain Biot-Savart’s law In this topic we will discuss about Biot-savart’s law and magnetic field at a point due to finite current carrying wire or conductor. Biot- Savart law – Biot-Savart’s law explain the magnetic field due to small current carrying element As we know , whenever the current passes through a conductor […]

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12th Notes

What is Ampere circuital law

Ampere circuital law – After the discovery of Oersted and Biot-Savart, Ampere found a useful relation between magnetic field and electric current.     [ In the case of all basic laws of physics , Ampere’s law can’t be derived , its validity is based on the correctness of the result.] . According to Ampere circuital law […]

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Uncategorized

MAGNETIC EFFECT OF CURRENT

Magnetic effect of current– If current flows through a conductor setup magnetic field around it is first observed by Oersted in 1820 . After that Biot-savart  established a formula for magnetic field due to small current carrying conductor. Direction of magnetic field can be found using right hand thumb rule . If current is flowing […]

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JEE NEET/PMT

OBJECTIVE QUESTIONS FOR UNITS AND DIMENSIONS

UNITS AND DIMENSIONS These questions will help the students to practice and test himself for the chapter units and dimensions. But before to solve these objective questions of unit and dimensions students must read the following topics , published by Physics classes by Nayan jha:- Units and measurement. To get the notes click here- Dimensions […]

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12th Assignments

assignment electric current class 12

this assignment deals with chapter electric current. this assignment will help the students to practice well and score good marks in board examinations.