A) 25 V/m
B) 2.5 V/cm
C) 2.5 V/m
D) 0.33 V/m
Correct Answer: D
Solution :
Potential gradient \[K=I.\frac{R}{L}\] Specific resistance \[\rho =\frac{RA}{L}\] \[\therefore \] \[K=\frac{I\rho }{A}\] \[\Rightarrow \] \[K=\frac{15\times 40\times {{10}^{-8}}}{18\times {{10}^{-6}}}\] Or \[K=0.33\,V/m\]You need to login to perform this action.
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