Question:
The amplification factor of a triode is 50. If the grid potential is decreased by 0.20 V, what increase in plate potential will keep the plate current unchanged?
The amplification factor of a triode is 50. If the grid potential is decreased by 0.20 V, what increase in plate potential will keep the plate current unchanged?
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The amplification factor of a triode is a measure of how much the plate potential changes in response to a change in the grid potential.
Updated On: Jan 12, 2026
- 5V
- 10V
- 0.2V
- 50V
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The Correct Option is B
Solution and Explanation
For a triode, the plate current is related to the grid and plate potentials. To keep the plate current constant when the grid potential is decreased, the plate potential must be increased by a corresponding amount. The amplification factor of the triode is 50, which determines how much the plate potential must increase.
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