A student claims that the unit “volt” can be fully written in base SI units as
PHYSICS · Multi-part · A Level · Physics · Measurements and their errors · Measurements and their errors
Problem
A student claims that the unit “volt” can be fully written in base SI units as kgm2s−3A−1. Answer the following to examine this statement.
(i) Starting from the definition 1V=1JC−1, convert joule and coulomb separately into base SI units.
(ii) Combine your results from part (i) to express the volt entirely in base SI units and verify whether the student’s claim is correct.
(iii) Explain, in not more than three sentences, the physical meaning of each base dimension that appears in the final expression for the volt.