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एक इन्स्युलेटर के उपयोग का मुख्य उद्देश्य क्या है?
वोल्टेज किसको मापता है?
सही स्थिथि में, करंट की संदर्भ में सहायक प्राणी कैसे सुरक्षित रह सकते हैं?
करंट को 'पॉजिटिव' माना जाएगा, अगर...
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'120 volts AC' किसकी मात्रा की मानक कहलाती है?
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एक विद्युत तार में विद्युत धारा क्या है?
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कॉन्डक्टर का क्या मुख्य लक्षण है?
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एक सरल परिपथि में कौन-कौन से घटक होते हैं?
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किस सूचक पर 'इलेक्ट्रिक करंट' मात्रिक एम्प में मापा जाता है?
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'प्रवाहिक' (insulators) सामग्री के लिए क्या सही है?
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Study Notes
Electricity is the flow of electric charge through a conductor, resulting from the presence of a potential difference between two points. It plays a crucial role in powering our homes, industries, and communication networks. Let's delve into the fundamentals of electricity, covering circuits, conductors, current, insulators, and voltage.
Circuits
An electrical circuit is a pathway through which an electric current flows when a voltage is applied. The simplest form of a circuit consists of a battery, two wires, and a light bulb. When you connect one end of the wire to each terminal of the battery, the current flows through the wire to the bulb, where it lights up. If you break either connection, the circuit will be open and the light won't turn on.
Conductors
A conductor is a material that allows electric charge to move freely within its structure. Metals such as copper, aluminum, and silver are excellent conductors because they have loosely bound electrons that can easily move around within the atom. This means that electricity can flow through them more easily than through non-conductors like plastic or rubber, which is why we often use conductive wires to carry electricity from one place to another.
Current
Electric current is the flow of electric charge through a conductor. It's usually measured in amperes (amps) and is represented by the symbol I. The direction of electric current depends on the orientation of an electron. If electrons are flowing away from you, the current is positive; if they're moving towards you, the current is negative.
Insulators
An insulator is a material that prevents electric charge from flowing through it. Common insulating materials include rubber, plastic, glass, and ceramics. Insulators are used to keep people and objects safe from electrical shock. For example, we cover live wires with rubber coating so that people don't accidentally come into contact with them and get electrocuted.
Voltage
Voltage, also known as potential difference, refers to the energy required to move a unit charge between two points. It measures the pressure needed for the charged particles to move from one point to another within a circuit. Voltage is typically measured in volts (V). For instance, a AA battery has about 1.5 volts, while most house power is 120 volts AC.
In summary, electricity is a fascinating phenomenon that powers our lives. Understanding circuits, conductors, current, insulators, and voltage helps us appreciate this complex force and use it effectively and safely.
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Description
इस क्विज़ में बिजली के महत्वपूर्ण पहलुओं को विस्तार से वर्णित किया गया है, जैसे सर्किट, Conductor, Current, Insulator और Voltage। हम उसके फंडामेंटल पर जानकारी प्राप्त करेंगे जो हमारे जीवन को चालू करने में महत्वपूर्ण भूमिका निभाती है।
