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NEET UG PHYSICS MCQ: UNITS & MEASUREMENTS

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Application +4 | -1
The work done by a battery is W=εΔqW = \varepsilon \Delta q , where Δq\Delta q charge transferred by battery, ε\varepsilon = emf of the battery. What are dimensions of emf of battery?
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Correct option: D
[ML2T−3A−1]\left[ {\mathrm{M}{\mathrm{L}^2}{\mathrm{T}^{ - 3}}{\mathrm{A}^{ - 1}}} \right]
Option D [ML2T−3A−1]\left[ {\mathrm{M}{\mathrm{L}^2}{\mathrm{T}^{ - 3}}{\mathrm{A}^{ - 1}}} \right] is correct because emf is work done per unit charge, and its dimensions can be derived from the dimensions of work and charge.

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