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Physics
A resistance of frustum shape is shown in figure. If a current i passes through the resistance, the electric field at A and B are related as
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Q. A resistance of frustum shape is shown in figure. If a current $i$ passes through the resistance, the electric field at $A$ and $B$ are related as
NTA Abhyas
NTA Abhyas 2020
A
$E_{A}>E_{B}$
B
$E_{B}>E_{A}$
C
$E_{A}=E_{B}$
D
there is no relation
Solution:
From ohm's law
Electric field $ \propto $ current density