General Physics Ques 21
- The relation between $[E]$ and $[B]$ is
(a) $[\mathrm{E}]=[\mathrm{B}]$
(b) $[E]=[B][L]^{-1}[T]$
(c) $[E]=[B][L][T]^{-1}$
(d) $[\mathrm{E}]=[\mathrm{B}][\mathrm{L}]^{-1}[\mathrm{~T}]^{-1}$
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Answer:
Correct Answer: 21.( c )
Solution:
- In terms of dimension, $F_c=F_m$
$ \begin{aligned} \Rightarrow & q E & =q v B & \\ \text { or } E & =v B & \quad {[E]=[B]\left[\mathrm{LT}^{-1}\right] } \end{aligned} $
BETA
