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IIT JEE NEET CBSE Class 10 11 12 Notes

Telegram Channel for Class 10 11 12 borad exams for CBSE, ICSE and State Boards. ☎️ Contact ☞ @LM_Support_bot ★ Daily Quiz ☞ Short Study Notes PDF ➠ Free Sample Papers 🗒 DPPs and PYQs Buy ads: https://telega.io/c/IIT_JEE_NEET_CBSE_Class_10_11_12

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🔰Metallurgy🔰
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Motion in a straight line Handwritten Notes
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✍️ Physics Important Formulas ✍️ 1. Work = force × distance कार्य = बल × दूरी 2. Energy = force × distance ऊर्जा = बल × दूरी 3. Speed = distance / time गति = दूरी / समय 4. Velocity= displacement / time वेग = विस्थापन / समय 5. Electric field = electrical force/charge विद्युत क्षेत्र= वैद्युत बल/आवेश 6. Force = force/area प्रतिबल=बल/क्षेत्रफल 7. Volume = length × width × height आयतन = लंबाई × चौड़ाई × ऊंचाई 8. Mass density = mass/volume द्रव्यमान घनत्व =द्रव्यमान/आयतन 9. Acceleration =velocity / time त्वरण = वेग / समय 10. Power = work / time शक्ति = कार्य / समय 11. Pressure = force / area दाब =बल/क्षेत्रफल 11. Momentum = mass × velocity संवेग = द्रव्यमान × वेग 13. Area (A) = Length × Width क्षेत्रफल ( A ) = लम्बाई × चौड़ाई 14. Force (F) = Mass × Acceleration बल ( F ) = द्रव्यमान × त्वरण 15. Pressure Energy = Pressure × Volume दाब ऊर्जा = दाब × आयतन 16. Impulse = force × time आवेग = बल × समय 17. Linear momentum = mass × velocity रैखिक संवेग = द्रव्यमान × वेग 18. Kinetic energy = 1/2 mv² गतिज ऊर्जा = 1/2 mv² 19. Mechanical energy = kinetic energy + potential energy यांत्रिक ऊर्जा = गतिज ऊर्जा + स्थितिज ऊर्जा 20. Angular momentum = Inertial × Angular velocity कोणीय संवेग = जड़त्वाघूर्ण × कोणीय वेग
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🔰Force and Pressure🔰 ➖When an object is either pushed or a pulled is known as a force. ➖Motion, generated in an object, is because of an action of a force. ➖The applied force makes the table move in a given direction. ➖The strength of a force is commonly expressed by the magnitude. ➖Force also has direction; likewise, if the magnitude or direction changes, it directly affects the force. ➖If the force is applied in the direction opposite to the direction of motion, then it results in a decrease in the speed of the object. ➖If an object is in motion, then external force may change in the state or direction of motion of that object. ➖The state of motion of an object is explained by its speed and the direction of motion. ➖The state of ‘rest’ of an object is considered to be the zero speed, as ➖ An object cannot move by itself. ➖An object cannot change its speed by itself. ➖An object cannot change its direction by itself. ➖An object cannot change by itself. ➖A force may make an object move from rest. ➖A force may change the speed of a moving object. ➖A force may change the direction of a moving object. ➖A force may change the shape of an object. ➖The force caused by the action of muscles is known as the muscular force. ➖Some force, decreases the speed of a moving object, is known as ‘friction.’ E.g. moving wheel on road; once the source of force stops working, then wheel stops because of friction. ➖The force applied by a charged body on another charged or uncharged body is known as ‘electrostatic force.’ ➖Objects or things that fall towards the earth, as earth pulls it towards itself; this force is known as the force of gravity or gravity. ➖The force of gravity is applicable on all objects. In fact, every object in this universe, irrespective of its size and shape, exerts some force on every other object. It happens only because of the ‘gravitational force.’ 🔷Pressure The force, applied on a unit area of a surface is known as pressure ➖Pressure= force / area on which it acts. ➖If the area is smaller, then the pressure on a surface would be greater; e.g. this is the reason that the area of one end of a nail is pointed to exert sufficient pressure and other end is bigger. ➖This envelop of air is known as the atmosphere that extends up to many kilometers above the surface of the earth. ➖The pressure exerted by the air is known as atmospheric pressure. ➖The pressure inside our bodies is exactly equal to the atmospheric pressure and annuls the pressure acting from outside. ➖Liquids and gases also exert pressure on the walls of their respective containers.
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💡Electricity💡 ✍️Introduction ➖If the electric charge flows through a conductor, such as a metallic wire, it is known as the electric current in the conductor. ➖A continuous and closed path of an electric current is known as an electric circuit. ➖In an electric circuit, usually, the direction of electric current known as positive charges, is considered as opposite to the direction of the flow of electrons, which are considered as negative charges. ➖The SI unit of electric charge is coulomb (C). ➖Coulomb is equivalent to the charge contained in closely 6 × 1018 electrons. ➖The electric current is expressed by a unit known as an ampere (A). ➖It was named after the French scientist Andre-Marie Ampere. ➖One ampere constitutes by the flow of one coulomb of charge per second, i.e., 1 A = 1 C/1 s. ➖The instrument that measures electric current in a circuit is known as ammeter. ➖The electric current flows in the circuit starting from the positive terminal to the negative terminal of the cell through the bulb and ammeter. ✍️Electric Potential and Potential Difference ➖The electrons of a conductor move only if there is a difference of electric pressure, known as the potential difference. ➖The chemical action within a cell produces the potential difference across the terminals of the cell. Further, when this cell is linked to a conducting circuit element, the potential difference sets the charges in motion in the conductor and generates an electric current. ➖Alessandro Volta 1745–1827, an Italian physicist, first noticed the electric potential difference; therefore, the SI unit of electric potential difference is given volt (V). ➖The instrument that measures the potential difference is known as the voltmeter. ✍️Electric Power ➖The rate at which electric energy is dissipated or consumed in an electric circuit is known as electric power. ➖The SI unit of electric power is watt (W).
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S-Block Handwritten Notes 👨‍💻 (💐#New) Share & React Below
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f block Elements
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