A) \[I\propto {{V}^{1/2}}\]
B) \[I\propto {{V}^{3/2}}\]
C) \[I\propto {{V}^{2}}\]
D) \[I\propto V\]
Correct Answer: B
Solution :
Child Langmuir law states that the space charge limited current in a diode valve is given by as\[I\propto k{{V}^{3/2}}\] (where V is voltage)
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