MCQ
Due to $S.C.R$ in vacuum tube
- ✓${I_p} \to $Decrease
- B${I_p} \to $Increase
- C${V_p} \to $Increase
- D${V_g} \to $Increase
✓
Answer
Correct option: A.
${I_p} \to $Decrease
a
(a)In $SCR$ (Space charge region) electrons collect around the plate, this cloud decreases the emission of electrons from the cathode, hence plate current decreases.
(a)In $SCR$ (Space charge region) electrons collect around the plate, this cloud decreases the emission of electrons from the cathode, hence plate current decreases.
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