The unit of mutual conductance of a triode va | vedclass

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(A) Mutual conductance $(g_m)$ is defined as the ratio of the change in plate current $(\Delta I_p)$ to the change in grid voltage $(\Delta V_g)$ whil

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Siemen

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(A) Mutual conductance $(g_m)$ is defined as the ratio of the change in plate current $(\Delta I_p)$ to the change in grid voltage $(\Delta V_g)$ while keeping the plate voltage constant.Mathematically, $g_m = \frac{\Delta I_p}{\Delta V_g}$.Since current is measured in Amperes $(A)$ and voltage in Volts $(V)$, the unit is $A/V$, which is equivalent to Siemens $(S)$ or Mho $(\Omega^{-1})$.Therefore, the correct unit is Siemen.

The unit of mutual conductance of a triode valve is

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In a triode valve,which of the following statements is correct?

The amplification factor of a triode is $20$,the trans-conductance is $3 \text{ mS}$ (milli mho),and the load resistance is $3 \times 10^4 \ \Omega$. Calculate the voltage gain.

How many electrodes are in the tetrode?

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