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QPage 352: Q7: HC Verma: Concepts of Physics - Volume 2 Electric Current through Gases Page 352: Q7 Solution: The plate current in a triode valve is zero. The temperature of …

The plate current in a triode valve is zero. The temperature of the filament is high. It is possible that ___________ .

Multiple Choice Options

A $V_g > 0, V_p > 0$
B $V_g > 0, V_p < 0$
C $V_g < 0, V_p > 0$
D $V_g < 0, V_p < 0$

Step-by-Step Verified Solution

**Answer:** (b), (d). **Step-by-Step Explanation:** Plate current is zero if both grid and plate voltages are negative (b, d).

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