The SI derived unit known as the weber measures_____________?
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Answer: C. magnetic flux
Explanation
The weber is the established SI derived unit used to measure magnetic flux. One weber is equivalent to one volt-second of electromagnetic induction flux linkage. Named after Wilhelm Eduard Weber, it quantifies the total magnetic field passing through a surface. International System of Units provides standardized measurement units for scientific and engineering fields. Magnetic flux represents the total magnetic field passing through a given geometric area. Derived units combine base SI units like kilograms, meters, seconds, and amperes.
Electrical machine designers calculate magnetic flux in webers to determine transformer core sizing. Faraday law of induction uses webers per second to calculate induced electromotive force voltages. Electromagnetic sensor calibration relies on accurate magnetic flux measurements in webers. Option A measures magnetic field intensity in units like amperes per meter. Option B measures magnetic induction or flux density in teslas rather than total flux. Option D measures self-inductance in units of henries rather than magnetic flux.
- Subject
- Engineering
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- Electrical Engineering
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- —
- Difficulty
- medium
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