Q. The current in a diode is related to the voltage $V$ by the equation
A) $I \propto V^{1/2}$
B) $I \propto V^{3/2}$
C) $I \propto V^{2}$
D) $I \propto V$
Explanation
(b) 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]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.