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Magnetic field is measured by...

Magnetic field is measured by

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To solve the question regarding how magnetic field is measured, we can follow these steps: ### Step 1: Understand the question We need to identify which instrument is used to measure the magnetic field from the given options. ### Step 2: Analyze the options The options provided are: - Option A: Pyrometer - Option B: Hydrometer - Option C: Thermometer - Option D: Fluxmeter ### Step 3: Define each instrument - **Pyrometer**: An instrument used to measure high temperatures. - **Hydrometer**: An instrument used to measure the density or specific gravity of liquids. - **Thermometer**: An instrument used to measure temperature. - **Fluxmeter**: An instrument specifically designed to measure magnetic flux. ### Step 4: Identify the correct instrument From the definitions, we can see that: - The pyrometer, hydrometer, and thermometer do not measure magnetic fields. - The fluxmeter is used to measure magnetic flux, which is directly related to the measurement of the magnetic field. ### Step 5: Conclusion Based on the analysis, the correct answer is: **Option D: Fluxmeter** is the instrument that measures the magnetic field.
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