MCQ
Give the SI unit of current density and its dimensional formula.
- ✓$Am ^{-2},\left[A^1 L^{-2}\right]$
- B$Am ^2,\left[A^1 L^2\right]$
- C$Am ^{-1},\left[A^1 L^{-1}\right]$
- D$Am ^1,\left[A^1 L^1\right]$
✓
Answer
Correct option: A.
$Am ^{-2},\left[A^1 L^{-2}\right]$
a. $Am ^{-2},\left[A^1 L^{-2}\right]$
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 $\left( Am ^{-2}\right)$ and its dimensions are $\left[A^1 L^{-2}\right]$.
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 $\left( Am ^{-2}\right)$ and its dimensions are $\left[A^1 L^{-2}\right]$.
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