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Which principle is used in rheostat?
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Why field rheostat is kept in minimum position while armature rheostat at maximum position?

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In the motors starting purpose why the armature rheostats at maximum position while the field rheostat is kept in minimum position?

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What is the difference between electronic regulator and ordinary electrical rheostat regulator for fans?

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What is the difference between potential divider and rheostat?

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What is the definition of a rheostat?
Answer : A **rheostat** is a type of variable resistor that is used to control the flow of electric current in a circuit. It has an adjustable resistance, which allows you to change the current ... used in low-power applications where you need to adjust current flow without needing a full potentiometer....

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What is the difference between a potential divider and a rheostat?

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What is the symbol for rheostat?
Answer : The symbol for a rheostat is usually represented by a resistor symbol with an arrow across it. This arrow indicates the adjustable part of the resistor, which allows you to change the ... circuit diagrams, this symbol helps to distinguish between fixed resistors and adjustable ones like rheostats....

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What is the SI unit of the rheostat?
Answer : The SI unit of a **rheostat** is the **ohm (Ω)**. A rheostat is a type of variable resistor, and since resistance is measured in ohms, the unit of a rheostat is also ohms. It is used to adjust the flow of current in a circuit by varying its resistance....

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What is the difference between a potentiometer and a rheostat?

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In which case the superposition principle is not obeyed?

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Which type of semiconductor is used in tunnel diode?
Answer : A **tunnel diode** is made using **n-type** and **p-type** semiconductors. These two types of materials are heavily doped, meaning they have a very high concentration of impurities. - The **n-type ... . In summary, tunnel diodes use **n-type** and **p-type** semiconductors, both heavily doped....

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Which lamp is used in the Newton-Ring experiment?
Answer : In the Newton's rings experiment, a **monochromatic light source** is typically used. This is because the interference pattern, which forms the rings, depends on the wavelength of light. Using ... . The monochromatic nature of the light helps in observing clear and well-defined Newton's rings....

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