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What is galvanometer in DC motor?
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Does a galvanometer convert AC to DC?
Answer : No, a galvanometer does not convert AC (Alternating Current) to DC (Direct Current). A galvanometer is a sensitive instrument used to detect and measure small amounts of electric current. It works ... a **rectifier** first to convert the AC into DC before the galvanometer measures the current....

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What is the purpose of a DC link in motor drive systems?
Answer : The **DC link** in motor drive systems plays a crucial role in connecting different sections of the drive, mainly the **rectifier** (which converts AC to DC) and the ** ... and efficient operation of motor drive systems by stabilizing the power flow and facilitating effective energy management....

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What is the function of a commutator in a DC motor?

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Is emf induced in DC motor?
Answer : Yes, electromotive force (EMF) is induced in a DC motor. When a DC motor operates, it converts electrical energy into mechanical energy. The key to understanding induced EMF in a DC motor is to look at ... induced in a DC motor, and this induced back EMF is a key factor in how the motor functions....

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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 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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What is DC motor in AC?
Answer : A "DC motor in AC" typically refers to a **DC motor running on an AC supply**. However, in its most basic form, a **DC motor** is designed to run on **direct current (DC)**, which flows in ... * can run on both AC and DC. Does this help clarify things, or are you looking for more technical details?...

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State the modifications to be done in dc series motor to work satisfactorily as ac series motor. State applications of ac series motor.
Answer : ### Modifications to be Done in a DC Series Motor to Work as an AC Series Motor A **DC series motor** is designed to run on direct current (DC), while an **AC series ... provide high torque at startup and withstand variable load conditions, which are typical in transport and industrial settings....

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What is the effect of a decrease in the load for a DC motor?

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What is the effect of an increase in the load for a DC motor?
Answer : When the load on a DC motor increases, several things happen that affect the motor's performance: 1. **Decrease in Speed**: As the load increases, the motor has to work harder to overcome the ... DC motor, it works harder, slows down, and draws more power to keep up with the extra demand....

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What is in a DC motor?
Answer : A DC (Direct Current) motor consists of several main parts that work together to convert electrical energy into mechanical motion. Here are the key components of a DC motor: 1. **Stator**: ... motion. The brushes and commutator work together to ensure the motor continues to turn in one direction....

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What is the difference between a motor and a generator in DC machine?
Answer : In a DC machine, both motors and generators are based on the same basic principle, which is electromagnetic induction. However, they work in opposite ways. Here's the difference: ### 1 ... electrical energy to produce motion, while a DC generator uses mechanical energy to produce electrical power....

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Why galvanometer and ammeter are connected in series?

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What is the value of K in galvanometer?
Answer : The value of **K** in a galvanometer refers to the **current sensitivity** of the instrument. Specifically, **K** represents the amount of deflection (in millimeters or some other unit) per unit ... how small of a current the galvanometer can detect or how precise it is in indicating the current....

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What is the SI unit of galvanometer in physics?
Answer : The SI unit of a **galvanometer** is **ampere (A)**. However, it's important to note that a galvanometer itself is an instrument used to measure small electric currents. It doesn't ... sense, a galvanometer is typically used to measure currents in the microampere (µA) or milliampere (mA) range....

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Which scale is used in galvanometer?
Answer : A **galvanometer** typically uses a **linear scale** or **circular scale** to measure small electrical currents. The scale is marked to indicate the amount of current flowing through the ... and the scale is typically marked with current values based on the device's sensitivity and calibration....

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Is a galvanometer used in series or parallel?
Answer : A **galvanometer** is typically used in **series** with a circuit. When you connect a galvanometer in series, it allows you to measure the current flowing through that part of the circuit. ... ruining the device. So, in short: **galvanometers are used in series** for current measurement....

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Why galvanometer is used in place of ammeter?
Answer : A **galvanometer** is used as the core device in an **ammeter** for measuring current, but it needs some modifications to function as an ammeter. Here's why and how it works: 1. **Sensitivity* ... (like a shunt resistor), it can be used to measure a wide range of currents without getting damaged....

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Which effect of current is used in galvanometer?
Answer : The effect of current used in a galvanometer is the **magnetic effect of current**. When an electric current flows through a coil placed within a magnetic field, it experiences a force. ... of deflection is proportional to the current, allowing it to indicate the strength of the electric current....

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Which wire is used in galvanometer?
Answer : In a galvanometer, the wire used is typically **copper wire**. Copper is chosen because it is an excellent conductor of electricity, which ensures minimal resistance and better sensitivity in the measurement ... the wire may be **enameled** to prevent short circuits between the turns of the coil....

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Where is galvanometer used in daily life?
Answer : A galvanometer is a device used to detect and measure small electric currents. While you might not come across a galvanometer directly in your everyday life, its principles and components are ... 'd typically use directly, its design is fundamental to many technologies we encounter every day!...

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