JEE Mains · Physics · STD 11 - 1. units,dimensions and measurement
If \(\in\), \( E \) and \( t \) represent the free space permittivity, electric field and time respectively, then the unit of \( \frac{eE}{t} \) will be :
- A Am
- B \(Am ^2\)
- C \(A / m ^2\)
- D A/m
Answer & Solution
Correct Answer
(C) \(A / m ^2\)
Step-by-step Solution
Detailed explanation
\( \frac{\epsilon E}{t}=\frac{\epsilon}{t}\frac{1}{4\pi\epsilon}\frac{q}{r^{2}} \) \( \Rightarrow\frac{AT}{TL^{2}}=(AL^{-2}) \) \( \Rightarrow A/m^{2} \)
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