In the mutual characteristic curve of a triod | vedclass

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(B) The mutual characteristic curve of a triode valve represents the variation of plate current $(I_p)$ with respect to grid voltage $(V_g)$ while kee

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$P$

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(B) The mutual characteristic curve of a triode valve represents the variation of plate current $(I_p)$ with respect to grid voltage $(V_g)$ while keeping the plate voltage $(V_p)$ constant.The cut-off voltage is defined as the negative grid voltage at which the plate current becomes zero.Looking at the provided graph,the plate current $(I_p)$ starts from zero at point $P$ on the negative $V_g$ axis.Therefore,point $P$ represents the cut-off voltage.

In the mutual characteristic curve of a triode,which point represents the cut-off voltage?

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