Explanation
For ‘AND’ gate, if output is 1, then both inputs must be 1.
Boolean expression for OR gate is Y = A + B
The given truth table is for NAND gate.
In SCR (Space charge region) electrons collect around the plate, this cloud decreases the emission of electrons from the cathode, hence plate current decreases.
After saturation plate current can be increased by increasing the temperature of filament. It can be done by increasing the filament current.
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