JEE
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a year agoContributor-Level 10
According to Shiksha's electric charges and fields class 12 notes, Coulomb's law states that if there are two stationary point charges, the electrostatic force between them is inversely proportional to the square of the distance between them and directly proportional to the product of the charges.
Mathematically,
F = (1 / 4? ) * (q? / r²)
Here r is the distance between the charges, q? and q? are charges and? is the permittivity of free space. Coulomb's law assumes charges are at rest and it is valid for point charges in vacuum or air. When the medium is not a vacuum and the charges are moving, the limitations include inaccuracy. This la
New answer posted
a year agoContributor-Level 10
The quantization of charge can be denoted as e = 1.6 * 10? ¹? C. It means that the object's charge is an integral multiple of the elementary charge. Mathematically, it can be represented as q = ±ne, where n is an integer. The charge exists in discrete packets or quanta and is not continuous. For example, a body cannot have a charge of 2.5e but a charge of 3e or -2e. Millikan first observed this quantization of charge in his oil drop experiment. Quantization is consistent with the matter's atomic structure and is a fundamental property of electric charge.
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a year agoContributor-Level 10
Conductors refer to materials that throughout their structure, allow the free movement of electric charges normally electrons. It happens because of the free electrons present in their outer shells. The examples of conductors include silver, aluminum and copper. On the other hand, there is no free flow of electric charges in the insulators because the electrons are tightly bound to atoms. Examples of the insulators are wood, rubber, and plastic. In electric circuits, the conductors are used as the wiring for the efficient transmission of electricity, and the insulators are used to provide safety by preventing the unwanted flow of curre
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a year agoNew question posted
a year agoNew answer posted
a year agoContributor-Level 10
An example of the periodic motion is Earth's revolution. In this, the motion repeats itself after regular intervals of time. In oscillatory motion, the object moves back and forth about a mean position like a vibrating spring or pendulum. It is a type of periodic motion. Although, oscillatory motions are periodic, however, not vice versa. Oscillatory motion typically follows sinusoidal patterns and involves a restoring force.
New answer posted
a year agoContributor-Level 10
No, IIT Delhi offers admission to its BTech course based on JEE Main and JEE Advanced scores only. Candidates selected based on exam scores are required to participate in the JoSAA counselling. This is the final criteria for admission. However, to be eligible for the BTech courses, students should have passed Class 12 with a minimum of 75% aggregate with Science subjects (i.e., Physics, Chemistry and Mathematics).
New answer posted
a year agoBeginner-Level 5
Students should use our NCERT Applications of Derivatives Solutions to begin their JEE preparation as a resource to build strong foundation. Our solutions follow the lates CBSE Class 12 syllabus which make them a complete resource for CBSE Boards prepaation, Yet for competitive exam like JEE, Student must go beyond NCERT and refer to advanced-level books like arihant, cengage or coaching material availble to them.
New answer posted
a year agoBeginner-Level 5
Yes, your chances of getting into SASTRA University are good, particularly for Stream 1 (70% of seats) where your JEE Main score and 12th percentage are considered. Your 79.57 JEE Main percentile and 98.1% in 12th are competitive scores for SASTRA.
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