MCQ
A graph of vacuum diode current Ip, is plotted against the anode voltage Vp for two different temperatures T1 and T2 of the cathode, as shown in the figure below. Study the graph and answer the following questions.
For the same anode voltage, (called plate voltage), the current more when the cathode temperature changes from T1 to T2 higher temperature.
For the same anode voltage, (called plate voltage), the current more when the cathode temperature changes from T1 to T2 higher temperature.
- AMore number of electron undergo collision
- BMore electrons are emitted
- CResistance increases
- DVoltage increases
