The V-I characteristic of a silicon diode is shown in the figure- Calculate the resistance of the diode -a- I-D- - 15 mA and -b- V-D- - -10 V-

Question

Toppr Admin · Accepted Answer

We know that-Resistance of diode is given vy -x25B3-V-x25B3-ISo- at IV-15mAFrom V-x2212-Icharacteristic equation-R-0-8-x2212-0-7-V-20-x2212-10-mA-10-x3A9-And-at Vn-x2212-10V-x25B3-I-0So- R is infinite-

The $V$ - $I$ characteristic of a silicon diode is shown in the figure. Calculate the resistance of the diode at
(a) $I_{D} = 15 m A$ and
(b) $V_{D} = - 10 V$ .

We know that,
Resistance of diode is given vy $\frac{△ V}{△ I}$
So, at $I_{V} = 15 m A$
From $V - I$ characteristic equation:
$R = \frac{(0.8 - 0.7) V}{(20 - 10) m A} = 10 Ω$
And,at $V_{n} = - 10 V$
$△ I = 0$
So, $R$ is infinite.

The V-I characteristic of a silicon diode is shown in the figure. Calculate the resistance of the diode at (a) ID=15 mA and (b) VD=−10 V.

We know that,Resistance of diode is given vy △V△ISo, at IV=15mAFrom V−Icharacteristic equation:R=(0.8−0.7)V(20−10)mA=10ΩAnd,at Vn=−10V△I=0So, R is infinite.

The $V$ - $I$ characteristic of a silicon diode is shown in the figure. Calculate the resistance of the diode at
(a) $I_{D} = 15 m A$ and
(b) $V_{D} = - 10 V$ .

We know that,
Resistance of diode is given vy $\frac{△ V}{△ I}$
So, at $I_{V} = 15 m A$
From $V - I$ characteristic equation:
$R = \frac{(0.8 - 0.7) V}{(20 - 10) m A} = 10 Ω$
And,at $V_{n} = - 10 V$
$△ I = 0$
So, $R$ is infinite.