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(C) The static plate resistance $(R_p)$ of a diode is defined as the ratio of the plate voltage $(V_p)$ to the plate current $(i_p)$ at a specific ope

Vedclass · Accepted Answer

$333.3$

Vedclass · Answer

(C) The static plate resistance $(R_p)$ of a diode is defined as the ratio of the plate voltage $(V_p)$ to the plate current $(i_p)$ at a specific operating point $P$.From the given graph,at point $P$,the plate voltage $V_p = 50 \, V$ and the plate current $i_p = 150 \, mA = 150 	imes 10^{-3} \, A$.The static plate resistance is given by:$R_p = \frac{V_p}{i_p} = \frac{50}{150 	imes 10^{-3}} \, \Omega$$R_p = \frac{50}{0.15} \, \Omega = \frac{5000}{15} \, \Omega = 333.33 \, \Omega$.Therefore,the static plate resistance is approximately $333.3 \, \Omega$.

$V_g$ (volt)	$0$	$-2$	$-4$	$-6$
$I_p$ (mA) for $V_p = 150$ $V$	$15$	$12.5$	$10$	$7.5$
$I_p$ (mA) for $V_p = 120$ $V$	$10$	$7.5$	$5$	$2.5$

The plate characteristic curve of a diode in the space charge limited region is as shown in the figure. The slope of the curve at point $P$ is $5.0 \, mA/V$. The static plate resistance of the diode will be ...... $\Omega$.

Similar Questions

The linear portions of the characteristic curves of a triode valve give the following readings. The plate resistance is ....... $\Omega$.
$V_g$ (volt) $0$ $-2$ $-4$ $-6$
$I_p$ (mA) for $V_p = 150$ $V$ $15$ $12.5$ $10$ $7.5$
$I_p$ (mA) for $V_p = 120$ $V$ $10$ $7.5$ $5$ $2.5$

$A$ triode has a transconductance $(g_m)$ of $2.5 \text{ mA/V}$ and an anode resistance $(r_p)$ of $20 \text{ k}\Omega$. If it is used as an amplifier with an amplification factor of $10$, what is the load resistance $(R_L)$ connected to the plate circuit in $\text{k}\Omega$?

With a change of load resistance of a triode, used as an amplifier, from $50 \, k\Omega$ to $100 \, k\Omega$, its voltage amplification changes from $25$ to $30$. The plate resistance of the triode is.....$k\Omega$.

The transconductance of a triode amplifier is $2.5 \, \text{mS}$ (milli-mho) and its plate resistance is $20 \, \text{k}\Omega$. If the voltage amplification is $10$, find the load resistance in $\text{k}\Omega$.

$A$ serious drawback of semiconductor devices is:

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