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12th Assignments

Integration

In Maths, integration is a method of adding or summing up the parts to find the whole. It is a reverse process of differentiation, where we reduce the functions into parts. This method is used to find the summation under a vast scale. Calculation of small addition problems is an easy task which we can […]

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12th Assignments

Science class-10th,Assignment- 1

                                              Chemistry Class Xth                                     Ch-1 Chemical Reaction and Equations These questions are provided by Vaishnavi jha (A scince student in delhi university)   How to select coaching centre for JEE and NEET click here- Multiple Choice Questions Which of the following does not involve in a chemical reaction?(a)Digestion of food in our body. (b)Process […]

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12th Assignments

current objective assignment -1

                                         Current objective assignment – (1)                                    Electric conduction ohm’s law and resistance. Answers of all the questions are given at the end of all questions of the assignment. 1. for which if the following depends of drift velocity v on electric field E is Ohm’s law obeyed ?          (a) v α E    (b) v= […]

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12th Assignments

Very important questions of ray optics

Very important questions of ray optics- In this topic we will get some, Very important questions of ray optics. Students preparing for board examination must solve all the questions given below. Very important questions of ray optics 1. Derive the mathematical relation between refractive indices μ1 and μ2 of two radii and radius of curvature […]

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12th Notes

Magnetic elements of earth

In this topic we will discuss about the magnetic elements of earth. All three kinds of magnetic elements of earth , angle of dip,angle of declination and horizontal components of earth magnetic field. Before to know about this topic students must know the magnetic field of earth. To get the note on this topic Magnetic […]

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12th Notes

Magnetic field of earth

In this topic we will discuss about Magnetic field of earth. And also cause of earth’s magnetism, and magnetic and geographic axis and meridian. Magnetic field of earth – In 1600 Sir William Gilbert first suggested that earth behaves like a magnet , it is huge magnet itself. The following evidence explain it- When a […]

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12th Notes

Conversion of galvanometer into voltmeter

Conversion of galvanometer into voltmeter In this topic we will discuss about the ‘ Conversion of galvanometer into voltmeter ‘ . What is ammeter? and how can we convert a Galvanometer into voltmeter? Before to read this topic ‘ Conversion of galvanometer into voltmeter ‘  students must know about the galvanometer and shunt . To […]

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12th Notes

Conversion of galvanometer into ammeter

Conversion of galvanometer into ammeter In this topic we will discuss about the ‘ Conversion of galvanometer into ammeter ‘ . What is ammeter? and how can we convert a voltmeter into ammeter? Before to read this topic ‘ Conversion of galvanometer into ammeter ‘  students must know about the galvanometer and shunt . To […]

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12th Notes

Shunt

Shunt In this topic we will discuss about, what is shunt? what are the uses of shunt? and how can we convert a galvanometer into ammeter? Before to go with this topic students must know about the moving coil galvanometer, to get the notes of moving coil galvanometer click here- Shunt- Shunt is a low […]

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12th Notes

Torque on a current carrying coil placed in magnetic field

Torque on a current carrying coil placed in magnetic field . In this topic we will find the expression for the torque on a current carrying coil placed in magnetic field. But before to derive the expression for ‘Torque on a current carrying coil placed in magnetic field’ , students must know the expression for […]