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Why is DC used in motor?
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Why it is used in DC motor?
Answer : In a **DC motor**, several components and concepts are used to make it work effectively. The key components and concepts include: ### 1. **Commutator** - The **commutator** is used to ... help in maintaining the direction of rotation in a **DC motor**, allowing it to keep spinning efficiently....

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Why back emf used for a dc motor? highlight its significance.
Answer : Back EMF (Electromotive Force) in a DC motor is the voltage generated by the motor's armature as it spins within a magnetic field. It is called "back" because it opposes the ... s current and power consumption, ensuring the motor runs smoothly without drawing excessive power or getting damaged....

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Why DC motor is used?
Answer : DC motors are widely used because they offer several advantages that make them ideal for specific applications. Here's why they are commonly used: 1. **Speed Control**: DC motors ... of control, simplicity, and versatility in various applications requiring different speeds, torque, and direction....

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In which device DC motor is used?
Answer : DC motors are used in various devices where controlled motion and speed are required. Some common devices that use DC motors include: 1. **Electric Fans** - DC motors are used in small electric ... simple to control with a change in voltage, which makes them suitable for a variety of applications....

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Why is a capacitor used in a motor?
Answer : Capacitors are commonly used in motors, particularly in single-phase induction motors, to improve their performance. Here's why: ### 1. **Starting Torque**: - In single-phase motors, the ... , and can extend the motor's lifespan by reducing strain from poor power factor or electrical noise....

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Where is the DC motor used?
Answer : DC motors are used in a wide range of applications due to their ability to provide precise control over speed and torque. Some common uses include: 1. **Electric Vehicles (EVs)**: DC motors ... ability to start, stop, and reverse quickly, makes them ideal for many uses where precision is needed....

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Which DC motor is mostly used?
Answer : The most commonly used DC motor is the **Brushed DC Motor**. It is simple, cost-effective, and reliable for a variety of applications, especially where low to medium power is needed. These motors are ... complex and expensive. Let me know if you need more details on a specific type of DC motor!...

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State at least one function and the material used for the following parts of a DC motor.
Answer : Here are the functions and materials for key parts of a DC motor: 1. **Armature**: - **Function**: The armature is the rotating part of the motor. It carries the current through the ... to minimize energy losses and improve efficiency. Let me know if you'd like more details on any part!...

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Why capacitor is used in DC supply?
Answer : Capacitors are used in DC supplies for a few important reasons, particularly in power supplies and circuits. Here's why: 1. **Smoothing the Output**: When AC (alternating current) is converted ... and stabilize the voltage, ensuring that the DC power provided to the circuit is clean and reliable....

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Why commutator is used in DC?
Answer : The commutator is used in DC (Direct Current) motors and generators to ensure the current in the windings flows in the right direction for continuous rotation or energy generation. Here's why ... continuous and unidirectional motion in DC motors and for converting AC to DC in DC generators....

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Why is DC not used in transmission lines?
Answer : DC (Direct Current) is generally not used in transmission lines for several key reasons: ### 1. **Power Losses**: - In AC (Alternating Current) transmission, power losses are lower ... cases where its advantages outweigh the drawbacks, like in HVDC systems for long-distance or underwater cables....

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Why DC is used in VFD?
Answer : DC (Direct Current) is used in Variable Frequency Drives (VFDs) primarily for the purpose of converting the AC (Alternating Current) supply into a controlled DC voltage and then converting it back to ... a variable output. It allows for smooth and precise control over the motor's speed and torque....

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Why is DC current not used in homes?
Answer : DC (Direct Current) is not used in homes for a few main reasons: 1. **Transmission Losses**: DC is harder to transmit over long distances. The loss of energy during transmission ... applications (like in batteries or electronic devices) but is less suited for large-scale power distribution....

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Why a DC motor?
Answer : A **DC motor** (Direct Current motor) is used because it has several advantages that make it suitable for many applications. Here are some key reasons: ### 1. **Simple Speed Control** ... control, good torque, and simple construction, making them a good choice for a wide range of applications....

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Why DC motor over AC?
Answer : Choosing a **DC motor** over an **AC motor** often depends on the application requirements, as both types have their advantages. Here's a simple breakdown of why someone might choose a **DC motor** over ... adjust speed and torque. Let me know if you'd like to dive deeper into any of these points!...

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Why is AC used instead of DC?
Answer : AC (Alternating Current) is used instead of DC (Direct Current) in most electrical systems for a few key reasons: ### 1. **Easier to Transmit Over Long Distances:** - AC ... preferred choice for the electrical grid due to its efficiency, cost-effectiveness, and ease of voltage transformation....

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Why is DC current used for battery charging?
Answer : DC (Direct Current) is used for battery charging because of how batteries store and release energy. Here's why: 1. **Battery Chemistry**: Batteries store energy in a chemical form and release it ... In short, DC is ideal for charging because it aligns with how batteries function and store energy....

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