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Electricity Safety Precautions for class VIII

 [4:25 PM, 4/15/2020] M.M.ThAKuR: Electrical Safety Rules.... Did you know that the voltage and available electrical current in a regular home or business has enough.  power to cause death by electrocution? The truth is, all electrical systems have the potential to cause harm. Your body is a natural conductor of electricity, and is vulnerable to electrical shocks and burns—including thermal burns that affect both the external skin and internal tissues—and arc blasts that can cause your lungs to collapse, or muscles to contract, causing a serious fall. Direct contact with energized conductors or circuit parts can interfere with the brain, make it difficult to breath, or even stop your heart. Working with electricity is serious business! If you’re taking electrician training, or about to begin an apprenticeship, these are 8 essential safety measures to know and respect. 1. Don’t touch someone who’s been electrocuted! It’s natural to want to reach out and assist a friend who has been shoc

ELECTRIC SHOCK and TREATMENT for Class VIII

Electric shock happens when the body becomes part of an energised electrical path and. energy is transferred between parts of the body, or through the body to ground or the earth. In. order for shock to occur, a potential difference or stored electrical charge must be present to. cause the current to flow. Electric Shock Treatment CALL 911 IF: The person has been injured by an electrical shock. Electrical shocks always need emergency medical attention -- even if the person seems to be fine afterward. The 911 emergency personnel may instruct you on the following: 1. Separate the Person From Current's Source To turn off power: Unplug an appliance if plug is undamaged or shut off power via circuit breaker, fuse box, or outside switch. If you can't turn off power: Stand on something dry and non-conductive, such as dry newspapers, telephone book, or wooden board. Try to separate the person from current using non-conductive object such as wooden or plastic broom handle, chair, or rub

STATIC AND DYNAMIC ELECTRICITY for Class VII

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  Static: Static electricity is the result of an accumulation of electric charges that occurs when two non-metallic objects rub against each other: for example, when we rub a balloon and it sticks to the wall. Electrons jump from one object to the other, causing a positive charge in one and a negative charge in the other. Dynamic: Dynamic electricity is the flow of electric charges through a conductor; in other words, an electric current.

Working & Differences Between AC/DC...for class VII...Previous work

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In the today’s world electricity is most important next to the oxygen in the human. When the electricity was invented many changes have taken place over the years. Dark planet turned into a planet of lights. In fact, it made life so simple in all circumstances. All the devices, industries, offices, houses, technology, computers run on electricity. Here energy will be in two forms, i.e. alternating current (AC) and direct current (DC). Regarding these currents and the difference between AC and DC will be discussed in detail, its basic function and uses of it. Its properties are also discussed in a tabular column. Working and Difference between AC and DC The difference between AC and DC  mainly includes the following   Difference between AC and DC Difference between AC and DC Alternating Current (AC) Alternating current is defined as the flow of charge that changes direction periodically. The result obtained will be, the voltage level also reverses along with the current. Basically, AC i

WORK EDUCATION – Definition, Historical Perspective, Concept and Objectives

 Definition of Work Education  Work Education is viewed as purposive and meaningful manual work, organized as integral part of the learning process and resulting into goods or services useful to the community, besides the pleasure of self fulfillment. It should be an essential component at all stages of education and must be provided through a well-structured and graded programme. The competencies to be developed in this field should include knowledge, understanding skills and values through need-based life activities. Major categories of work, which need to be specifically stressed include: a) Work pertaining to the needs of individual, such as health, hygiene, clothing, cleanliness, etc; b) Work at home to be performed as a member of the family; c) Work in the classroom, school and in the out of school activities integrated with school life; d) Work as a learning experience through other subjects such as physical education, art education, social studies, science and others; e) Work i