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Showing posts from December, 2022

Understanding Hooke's Law: The Foundation of Elasticity| Chapter 5 Physics 9th

HOOKE'S LAW   Introduction In physics, Hooke's Law is one of the fundamental principles governing how objects deform under external forces . Named after the 17th-century British physicist Robert Hooke, this law provides a crucial understanding of the behavior of elastic materials, such as springs and rubber bands. Whether stretching a rubber band or compressing a spring, Hooke's Law helps explain what happens when forces act on these materials. What is Hooke's Law: Hooke's Law states that the force F needed to extend or compress a spring by some distance x is proportional to that distance. Mathematically, it is expressed as: F= -kx Here k represents the spring constant, which is the measure of the stiffness of the spring, and x is the displacement from the displacement position.  The negative sign indicates that the force exerted by the spring is in the opposite direction of the displacement.  Understanding the Spring Constant: The spring constant k is a critical co

Laws Of Motion Physics

 NEWTON'S   LAWS OF MOTION NEWTON'S FIRST LAW OF MOTION: You have often observed the table placed in your classroom . It always remains at the same place until you apply some force to move it. Like a book placed on the table remains at its place unless someone picks it back. Similarly, a satellite in the space continuously moves with constant speed because there is no air or force of friction in the space. Contrary to above examples, a ball rolling on the ground however stops after some time because friction of ground and air resistance exert force on it and change its state of motion or direction of motion. We can define Newton’s first law of motion as,                      "A body continues its state of rest or of uniform motion in a straight line unless an external force acts on it ". Newton's First law is also known as Law of Inertia. Inertia can be defined as,                     " Inertia is the property of an object due to which it tends t

Logic Gates | Digital Electronics

 LOGIC GATES ·        Logic gates are the basic building block of the Digital System . ·        It is an Electronic circuit having one or more inputs, and only one output. ·        The relation between input and outputs is based on certain Logic. Based on this logic gates are named as AND gate, OR gate, Not gate. ·        Total there are Seven Gates, three are basic and other are derived from basic logic gates. ja 1.  NOT Gate 2 2. AND Gate 3 3. OR Gate    4. NOR Gate     5. NAND Gate     6. XOR Gate     7. XNOR Gate           1. NOT GATE: NOT gate is also known as inverter. The symbols used for NOT gate are given as under, The Boolean expression for NOT gate is:          X = A' Where  X is output A' is the inverted version of the input A. When the input will be LOW the output will be HIGH. When the input will be HIGH the output will be LOW. TRUTH TABLE OF NOT GATE: NOT GATE USING TTL: 2. AND GATE: The AND gate is the basic logic gate which can be combine to form any l