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Current Electricity — Physics STD 12 Science — Question

Rajasthan BoardEnglish MediumSTD 12 SciencePhysicsCurrent Electricity1 Mark
Question
Give the $SI$ unit of current density and its dimensional formula.
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Answer

Current density is the amount of charge flowing per second through a unit area.
The $SI$ unit of current density is ampere per square metre $(Am^{-2})$ and its dimensions are $[A^1L^{-2}].$

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