The plate current in a diode is 20 mA when the plate voltage is 50 V or 60 V. What will be th ecurrent if the plate voltage is 70 V?
For plate current 20 mA, we find the voltage 50 V or 60 V
Hence it acts as the saturation current therefore for the same temperature, the plate current is 20 mA for all other values of voltage.
Hence the required answer is 20 mA.