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State the need of UPS.
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Define the term ‘calibration’ and state its need for measuring instruments.

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State the need for an overvoltage relay in the power system.

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When voltage increases then current also increases then what is the need of over voltage relay and over current relay?

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What indicators can signal the need for MCB replacement?

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Why do we need a capacitor?
Answer : Capacitors are important components in electrical and electronic circuits, and they serve several key purposes. Here's a simple breakdown of why we need them: ### 1. **Storing Energy:* ... store, filter, and regulate energy in electrical circuits, ensuring that devices run smoothly and efficiently....

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How much Watts Solar Panel We need for our Home Electrical ?

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Why does the battery need an electrolyte salt bridge between the terminals?

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Why do we need ADC?
Answer : An **ADC** (Analog-to-Digital Converter) is essential because most modern electronics work with **digital signals** (ones and zeros), but the world around us is analog. Sensors, microphones, ... analog world** (real-life signals) and the **digital world** (electronic circuits and computers)....

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Discuss the energy conservation opportunities in induction motor and its need.

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