Electric potential questions and answers pdf

NCERT Exemplar Problems Solutions Electric potential questions and answers pdf 10 Science PDF format to download. Solved questions class 10 maths, science, social science, Hindi and English. NCERT Exemplar Problems Solutions class 10 Science PDF format to download.

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Chapter 8: How do Organisms Reproduce? A complete chemical equation represents the reactants, products and their physical states symbolically. Equations must always be balanced. In a decomposition reaction, a single substance decomposes to give two or more substances. Reactions also involve the gain or loss of oxygen or hydrogen by substances. H less than 7 and a basic solution a pH more than 7. Living beings carry out their metabolic activities within an optimal pH range.

Acids and bases neutralise each other to form corresponding salts and water. Salts have various uses in everyday life and in industries. Metals are lustrous, malleable, ductile and are good conductors of heat and electricity. Aluminium oxide and zinc oxide show the properties of both basic as well as acidic oxides. Different metals have different reactivities with water and dilute acids. Metals above hydrogen in the Activity series can displace hydrogen from dilute acids.

A more reactive metal displaces a less reactive metal from its salt solution. Metals occur in nature as free elements or in the form of their compounds. The surface of some metals, such as iron, is corroded when they are exposed to moist air for a long period of time. They are neither malleable nor ductile. Non-metals form negatively charged ions by gaining electrons when reacting with metals. Non-metals do not displace hydrogen from dilute acids. Sun to synthesise complex high-energy organic material.

ATP is used to provide energy for other reactions in the cell. Respiration may be aerobic or anaerobic. The circulatory system consists of the heart, blood and blood vessels. Plants use a variety of techniques to get rid of waste material. It controls the magnitude of the current.

The potential difference across the ends of a resistor is directly proportional to the current through it, provided its temperature remains the same. One watt of power is consumed when 1 A of current flows at a potential difference of 1 V. The direction of the magnetic field at a point is given by the direction that a north pole placed at that point would take. Field lines are shown closer together where the magnetic field is greater.