The power delivered in the plate circuit of a diode is 1.0 W when the plate voltage is 36 V. Find the power delivered if the plate voltage is increased to 49 V. Assume Langmuir – Child equation to hold.
Given P1=1 W, VP1= 36 V, VP2= 49 V
We know,
According to Langmuir-Child equation
where ip is the plate current and Vp is the plate voltage
Now,
∴=.04411×49=2.16
W=2.2 W