MCQ
Give the SI unit of current density and its dimensional formula.
- AAm-2, [A1L-2]
- BAm2, [A1L2]
- CAm-1, [A1L-1]
- DAm1, [A1L1]
✓
Answer
- Am-2, [A1L-2]
Explanation:
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 [A1L-2].
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