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What is the principle of a voltmeter?
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What is the zero of a voltmeter?
Answer : The "zero" of a voltmeter refers to the point on the scale of the voltmeter where it shows zero voltage. In other words, when the voltmeter is not connected to any electrical circuit ( ... to calibrate this "zero" point. For digital voltmeters, this is usually automatically adjusted when turned on....

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What is the range of A voltmeter?
Answer : The range of a voltmeter refers to the maximum and minimum voltages that the voltmeter can measure accurately. It's typically specified by the manufacturer and can vary depending on the model. For ... a voltmeter with the right range, you need to know the expected voltage levels in your circuit....

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Is voltmeter a type of galvanometer?
Answer : Yes, a voltmeter is essentially a modified type of galvanometer. Both instruments work on the same principle, which is detecting current flow, but their design and use differ to measure ... scale it up for voltage measurements, whereas a galvanometer is used primarily for current detection....

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Why do we prefer potentiometer to compare the emfs of cells than a voltmeter?

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Why the reading of emf by a voltmeter is less than that by a potentiometer?

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Why do we prefer a potentiometer to compare the emf of cells than a voltmeter?

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Why is a potentiometer used instead of a voltmeter?

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What are the advantages of a voltmeter?
Answer : A voltmeter is an essential tool in electrical measurements, and it offers several advantages, including: 1. **Measures Voltage Accurately**: The primary function of a voltmeter is to ... ability to diagnose issues make it a valuable tool in electrical and electronic testing and maintenance....

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What is the SI unit of A voltmeter?
Answer : The SI unit of a voltmeter is the **volt (V)**. A voltmeter measures electric potential difference (voltage) between two points in a circuit. The volt, which is the unit of this measurement, is defined ... charge. In summary, the voltmeter measures voltage in **volts (V)**, which is the SI unit....

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What is the internal resistance of a Voltmeter and what should it be replaced with: Short circuit or Open Circuit?

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What is the difference between a galvanometer and a voltmeter?

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