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Why is BJT a control device?
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In which device a bimetallic strip is used to control temperature?

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There are a Transformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

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Why thyristor is considered as Charge controlled device?
Answer : A thyristor is considered a **charge-controlled device** because its operation is primarily controlled by the flow and accumulation of charge carriers (electrons and holes) within the device. ... accumulation and release of charge carriers within the device, rather than a continuous control signal....

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Why is FET an unipolar device?
Answer : A **FET (Field Effect Transistor)** is considered a **unipolar device** because it primarily relies on the movement of **one type of charge carrier** (either **electrons** or * ... charge carrier, making them fundamentally different from bipolar devices like BJTs, which use both electrons and holes....

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Why is it called a BJT?
Answer : BJT stands for **Bipolar Junction Transistor**. It is called **bipolar** because it uses both electrons and holes as charge carriers in its operation. The term **junction** comes from the two PN junctions ... → Works as an amplifier or switch. Would you like a deeper explanation of how it works?...

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Why is BJT used as an amplifier?
Answer : A Bipolar Junction Transistor (BJT) is commonly used as an amplifier because it can take a small input signal (usually voltage or current) and produce a larger output signal, ... amplification. This makes them versatile and widely used in various electronic devices for signal processing....

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Why is BJT called unipolar?
Answer : Actually, a **BJT (Bipolar Junction Transistor)** is not called "unipolar." It's called **bipolar** because it involves both **types of charge carriers** (electrons and holes) in its operation. Here ... carrier-either electrons or holes. So, to clarify: the **BJT** is bipolar, not unipolar....

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Why is BJT so called?
Answer : The term "BJT" stands for **Bipolar Junction Transistor**. Here's the breakdown of the name: 1. **Bipolar**: This refers to the two types of charge carriers involved in the operation of the ... *BJT** refers to a transistor that has two junctions and uses both types of charge carriers to function....

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Why is BJT used?
Answer : A **BJT (Bipolar Junction Transistor)** is widely used in electronics because of its ability to amplify signals, switch currents, and control electrical power. Here are the main reasons ... electronic devices, from radios to computers, due to their efficient current control and high performance....

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Why Negative Feedback is preffered in the Control System?

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What is the function of a microcontroller in a device?
Answer : A microcontroller is like the brain of a device. It is a small computer that controls the functions of the device by reading inputs, processing the information, and then giving outputs to make the ... the device by connecting inputs (like sensors or buttons) and outputs (like motors or displays)....

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What is a power measurement device?
Answer : A power measurement device is a tool used to measure the amount of electrical power in a system or circuit. Electrical power is the rate at which energy is used or produced, ... for checking energy efficiency, preventing equipment damage, and ensuring that electrical systems are running smoothly....

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What is a current measurement device?
Answer : A **current measurement device** is a tool or instrument used to measure the flow of electric current in a circuit. Electric current is the flow of electric charge, usually carried by ... These devices help you keep track of electrical systems, ensure safe operation, and diagnose problems....

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What is a voltage measurement device?
Answer : A **voltage measurement device** is a tool used to measure the electric potential difference (voltage) between two points in an electrical circuit. Voltage is what drives electric current ... electrical pressure is present in the circuit, helping you diagnose problems or design better systems....

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What is a lockout/tagout device?
Answer : A **lockout/tagout (LOTO)** device is used to ensure the safety of workers when they are performing maintenance or repair work on machinery or electrical systems. These devices are part of ... performed. It's a key safety procedure to prevent injuries or fatalities from unexpected energy release....

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What is a CMOS device?
Answer : A **CMOS** (Complementary Metal-Oxide-Semiconductor) device is a type of semiconductor technology used to build electronic circuits, like microprocessors, memory chips, and image sensors. CMOS ... the foundation of most modern electronics due to its efficiency, speed, and low power consumption....

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Is MOSFET a power device?
Answer : Yes, a MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) can be considered a power device, but it depends on how it's being used. MOSFETs are commonly used in low to medium power ... they also appear in signal processing circuits), high-power MOSFETs are widely used in power electronics....

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