The V-I characteristics of a silicon diode is shown in the figure. The resistance of the diode at $V_D = -10 V$ is
Answer & explanation
Correct answer: option 4
The correct answer is Option (4) → $1.0 × 10^7Ω$
The resistance of Diode at a particular voltage ($V_D$) is -
$R=\frac{V_D}{I}$ [By ohm's law]
$=\frac{10}{1μA}=10^7Ω$