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Class 8 Science Chapter 9 : Ammeter and Voltmeter

Class 8 Science Chapter 9 : Ammeter and Voltmeter

Education, অষ্টম শ্রেণি, অষ্টম শ্রেণির বিজ্ঞান, মাধ্যমিক
Today we are going to discuss about Ammeter and Voltmeter: from Class 8 Science Chapter 9 . An ammeter and voltmeter are two important instruments used in electrical engineering and physics to measure the current and voltage in a circuit. They both work by measuring the electrical properties of a circuit and are essential tools for designing, troubleshooting, and repairing electrical systems. Ammeter An ammeter is an instrument used to measure the electric current in a circuit. It is typically connected in series with the circuit and measures the current flowing through it. The unit of measurement for current is the ampere (A), and an ammeter is calibrated in amperes. To measure the current in a circuit using an ammeter, the circuit must be interrupted, and the ammeter must be inserted...

Easy explanation of Ohm’s Law: Class 8 science: Chapter 9

Education, অষ্টম শ্রেণি, অষ্টম শ্রেণির বিজ্ঞান, মাধ্যমিক
Here is an Easy explanation of Ohm's Law: Class 8 science: Chapter 9 Ohm's law is a fundamental principle in electrical engineering and physics. It describes the relationship between voltage, current, and resistance in an electrical circuit. Simply put, Ohm's law states that the current passing through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. This article will explain Ohm's law and provide examples and formulas to help you understand it better. The formula for Ohm's law is: V = IR Where V is the voltage, I is the current, and R is the resistance. This formula shows that the voltage across a conductor is directly proportional to the current flowing through it and invers...

Heat energy conversion in chemical reactions : Class 8 Science

Education, অষ্টম শ্রেণি, অষ্টম শ্রেণির বিজ্ঞান, মাধ্যমিক
Heat energy conversion in chemical reactions: Class 8 Science: Chapter 8 Heat energy conversion in chemical reactions is an essential aspect of chemistry. Chemical reactions that involve a change in temperature, whether endothermic or exothermic, can release or absorb heat energy. Heat energy can be converted into other forms of energy such as electrical, mechanical, or sound energy. In this paper, we will discuss heat energy conversion in chemical reactions and provide examples of chemical formulas. Endothermic Reactions Endothermic reactions are those reactions that require the absorption of heat energy to occur. These reactions usually take place in cold environments and are characterized by a decrease in temperature. The heat energy is absorbed by the reactants during the reaction...

Displacement Reaction: Class 8 Science : Chapter 8

Education, অষ্টম শ্রেণি, অষ্টম শ্রেণির বিজ্ঞান, মাধ্যমিক
Displacement Reaction: Class 8 Science: Chapter 8. Discussion on Displacement Reaction. Displacement reactions are a type of chemical reaction in which one element or ion replaces another element or ion in a compound. Displacement reactions occur when a more reactive element displaces a less reactive element from a compound. Displacement reactions are important in many areas of science, including biology, chemistry, and geology. In this paper, we will discuss displacement reactions and provide examples of chemical formulas. The Displacement Reaction The general equation for a displacement reaction is: A + BC → AC + B In this equation, A is the element or ion that is more reactive than B in the compound BC. The more reactive A displaces B from the compound, forming the new compou...

Combustion Reaction: Class 8 Science: Chapter 8

Education, অষ্টম শ্রেণি, অষ্টম শ্রেণির বিজ্ঞান, মাধ্যমিক
Combustion is a chemical reaction in which a substance reacts with oxygen gas, producing heat and light. Combustion reactions are exothermic, which means that they release energy in the form of heat. Combustion reactions are important for a variety of applications, such as energy production, transportation, and cooking. This paper will discuss combustion reactions and provide examples of chemical formulas. The Combustion Reaction: Class 8 Science: Chapter 8 The general equation for a combustion reaction is: Fuel + Oxygen → Carbon dioxide + Water + Energy The fuel is usually a hydrocarbon, which is a compound consisting of carbon and hydrogen. The oxygen gas is typically from the air. During the reaction, the hydrocarbon is oxidized, or burned, and produces carbon dioxide and water va...

চ্যাটজিপিটিকে বললাম পকেট ফাঁকা, সে কী উত্তর দিল দেখুন

Jokes
চ্যাটজিপিটিকে বললাম পকেট ফাঁকা, সে কী উত্তর দিল দেখুন   আপনি যদি পকেটে টাকা না রাখেন তবে আপনি কিছু পদক্ষেপ নিতে পারেন: ১। সমস্যাটি সামান্য হলে আপনি কোনো বিষয়ে ব্যয় করতে থাকবেন না। ২। আপনি আপনার বন্ধুদের সাহায্য চাইতে পারেন এবং সামগ্রী ভাগ করতে পারেন। ৩। আপনি নিজেকে সম্পর্কে বিষয়ে স্বচ্ছতা করে দেখতে পারেন। সমস্যাটি কী এবং কিভাবে তা সম্পর্কে চিন্তা করুন। এরপর একটি পরিকল্পনা করুন এবং কিভাবে সেটি বাস্তবায়ন করা যাবে তা স্বচ্ছতার মাধ্যমে চিন্তা করুন। ৪। সমস্যাটি আপনার জন্য সম্ভবত আশ্রয়শীল একটি সমস্যা হতে পারে এবং একটি সমাধান খুঁজতে আপনাকে প্রয়োজন হতে পারে। একটি বিনামূল্যে সমাধান খুঁজে পাওয়া যাবে তাহলে আপনি সেটিতে অবস্থান দিন।...

Interesting Facts about Butterflies for kids

Facts for Kids, Kidz
Welcome, kids! Today, we'll learn about butterflies. Here are some interesting facts about butterflies. Butterflies have vibrant colors and intricate patterns on their wings. There are over 20,000 species of butterflies. Butterflies come in all shapes and sizes, with wingspans ranging from just a few centimeters to as much as 30 centimeters! Butterflies go through a life cycle consisting of four stages. These stages are egg, larva, pupa, and adult. The egg stage lasts for a few days. After hatching, the larva or caterpillar feeds on leaves and grows rapidly. The caterpillar sheds its skin several times until it reaches its full size. Then, it enters the pupa stage, where it undergoes metamorphosis. After a few weeks, the adult butterfly emerges. Adult...

Modeling in India: Start Your Career in Fashion Industry

Glamour
India has a rich cultural heritage, and its fashion industry is no exception. With the rise of social media and globalisation, the demand for models has increased, and many aspiring models are looking to enter the industry. If you are one of them and looking for your break in Modeling in India, this article is for you. Here is everything you need to know about modeling in India. What is Modeling? Modeling is the process of posing for photographs, walking the runway, or appearing in commercials and advertisements. It is a diverse field that requires a wide range of skills, including confidence, poise, and the ability to project a specific image. Modeling can be a lucrative career option, but it requires hard work and dedication. Types of Modeling in India In India, there are several types...

রোমান্টিক বিরহের গল্প : চরণে ধরিয়া তব

Stories
রোমান্টিক বিরহের গল্প : চরণে ধরিয়া তব। গল্পটি লিখেছেন এ কালের অন্যতম সেরা তরুণ লেখক  ধ্রুব নীল। লেখকের অনুমতিক্রমে রোমান্টিক বিরহের গল্প : চরণে ধরিয়া তব পাঠকদের জন্য তুলে ধরা হলো। শুধু আমিই আমাকে বুঝতে পারি। আমার মা-ও আমাকে বুঝতে পারে না। সেখানে তমাল কোন ছার। তাকে বুঝতে দিলেও সে বুঝবে না। তমাল হলো খোলা বই। তরতর করে রিডিং পড়া যায়। সমস্যা হলো বইটায় তেমন থ্রিল নেই। ম্যাড়ম্যাড়ে কয়েকটা ছোটগল্প আছে বড়জোর। তমালের ফোনে ব্রাউজার হিস্ট্রি ডিলিট করার অ্যাপ দেখেছি। কথা বলার সময় মিনিটে চোখ কতবার কোন দিকে যায়, আর সেটার পেছনে যে মনস্তত্ত্ব লুকিয়ে থাকে, সেটা একটা সফটওয়্যারও ধরে ফেলবে। আমার চোখের কঠিন ফেস রিকগনিশন সে ফাঁকি দেবে কী করে! লুকিয়ে এটা সেটা দেখলে দেখুক। প্রেম করার জন্য লুতুপুতু মার্কা সেজে বসে থাকাটা যে কাজের জিনিস নয়, এই ভুল তার ভাঙতে হবে। বিশ্বাস করুন, ভালো মানুষিগিরির চেয়ে বিরক্তিকর আর ক...

Tourism in Bangladesh: Rethinking the Uncharted Prospects

Travel Destinations
Bangladesh has immense potential in the tourism industry, as the natural diversity of this country is unique. As the slogan of this year’s international tourism day (27 September) is Rethinking Tourism, therefore, we have to reflect the moto in our tourism sector in every possible way. by Faisal Abdullah Currently, the tourism sector contributes about 11 percent to the world's GDP. In 2019, the number of tourists in the world was about 1.5 billion. The World Tourism Organization (WTO) projected an additional 4 to 5 percent growth each year thereafter. In 1950 the number of tourists in the world was only 25 million which has increased to about 1435 million in 2019. The income generated from the tourism sector of Bangladesh is roughly 76.19 million dollars. According to the estimates of th...

Rebecca Lim : Singapore Actress’s Life, Career and Everything Else

Glamour, Singapore News
Rebecca Lim is a well-known Singaporean actress who has been entertaining audiences for more than a decade. Her talent and hard work have made her one of the most popular actresses in Singapore. In this article, we will explore her career, achievements, and personal life. Rebecca Lim's Early Life and Career Rebecca Lim was born on 26 September 1986 in Singapore. She started her career in the entertainment industry in 2004, hosting a children's television show called "The Sharity Club." She then went on to appear in several dramas and movies in Singapore, including "The Pupil" and "Code of Law." Her breakthrough role came in 2012, when she starred in the popular drama "The Pupil." She received critical acclaim for her performance and was nominated for Best Actress at the Star Award...

15 interesting facts for kids

Facts for Kids, Kidz
Here are 15 interesting facts for kids The tongue is the strongest muscle in the human body. There are more stars in the universe than grains of sand on all the beaches on Earth. The human nose can detect over 1 trillion different scents. A group of flamingos is called a flamboyance. Sloths only come down from trees once a week to go to the bathroom. Sharks have been around for more than 400 million years. The shortest war in history was between Britain and Zanzibar and only lasted 38 minutes. A group of hedgehogs is called a prickle. The world's largest snowflake on record measured 15 inches wide and 8 inches thick. The Great Wall of China is visible from space, but only under certain conditions. The only continent with no active volcanoes is Australia...

Earning Money in Singapore City is Never been Easy

Singapore News
Are you living in Singapore City and looking for ways to earn extra cash? With the city's vibrant economy and tech-savvy population, there are plenty of online earning opportunities available to you. Here are some tips to help you get started: Start freelancing One popular way to earn money online in Singapore City is through freelancing. Whether you're a writer, designer, coder, or marketer, there are plenty of online platforms where you can offer your services to clients around the world. Sites like Fiverr and Upwork allow you to set your own rates and work on projects that match your skills and interests.   Sell your products or services online If you have a product or service to offer, you can set up an online store or website to sell it. Platforms l...

Jeanette Aw: Hot Singaporean Actress Heating Up the Screen

Glamour, Singapore News
When it comes to Hot Singaporean actresses, few can compare to the stunning Jeanette Aw. Known for her natural beauty and captivating performances, Jeanette has been a household name in Singapore for years. But is she really just hot? Let's take a closer look at this talented actress. Jeanette Aw first burst onto the scene in 2002, when she won the first season of the reality TV competition "Star Search". Her unique looks and bubbly personality quickly won over audiences, and she soon became one of the most popular actresses in Singapore. But Jeanette's success didn't stop there. She went on to star in a number of popular TV dramas, including "The Little Nyonya", which became a massive hit both in Singapore and overseas. Her performances in that drama earned her several award...

Zoe Tay: The Singaporean Actress Who’s More Than Just hot

Glamour, Singapore News
When it comes to Singaporean actresses, one name that comes to mind for many is Zoe Tay. Known for her stunning looks and captivating performances, Zoe has been a household name in Singapore for decades. But is she really just hot? Let's take a closer look at this talented actress. Zoe Tay first rose to fame in the 1990s, when she starred in a string of popular TV dramas. Her natural beauty and acting skills quickly captured the hearts of audiences all over Singapore, and soon she became one of the most sought-after actresses in the industry. But Zoe's success didn't stop there. In 1996, she won the Best Actress award at the Star Awards for her role in the drama "The Golden Pillow". She went on to win the award two more times in the following years, cementing her status as on...

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