Question
Explain dynamic resistance of a diode.

Answer

$1.$ The dynamic $(AC)$ resistance of a diode, $r_g,$ at a particular applied voltage, is defined as $r _{ g }=\frac{\Delta V}{\Delta I}$
$2.$ The dynamic resistance of a diode depends on the operating voltage.
$3.$ It is the reciprocal of the slope of the characteristics at that point.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Draw a neat diagram representing electromagnetic wave propagating along Z-axis.
Find the percentage error in kinetic energy of a body having mass 60.0 ± 0.3 g moving with a velocity 25.0 ± 0.1 cm/s.
The electrostatic force on a small sphere of charge $0.4 \mu C$ due to another small sphere of charge $-0.8 \mu C$ in air is $0.2 N.\ (i)$ What is the distance between the two spheres? $(ii)$ What is the force on the second sphere due to the first?
Using the rule for differentiation for quotient of two functions, prove that $\frac{d}{d x}\left(\frac{\sin x}{\cos x}\right)=$ $\sec ^2 x$
Discuss the factors on which time period of conical pendulum depends.
At what temperature would the resistance of a copper conductor be double its resistance at $0^{\circ} C ?$
$($a for copper $=3.9 \times 10^{-3} /{ }^{\circ} C )$
Identify the name and part of electromagnetic spectrum and arrange these wavelengths in ascending order of magnitude:
Electromagnetic waves with wavelength
$i. \ \lambda _1$ are used by a $\text{FM}$ radio station for broad casting.
$ii. \ \lambda _2$ are used to detect bone fracture.
$iii. \ \lambda _3$ are absorbed by the ozone layer of atmosphere.
$iv. \ \lambda _4$ are used to treat muscular strain.
If $100$ joules of work must be done to move electric charge equal to $4 C$ from a place, where potential is $-10$ volt to another place where potential is $V$ volt, find the value of $V$.
In the following table, every entry on the left column can match with any number of entries on the right side. Pick up all those and write respectively against A, B, C and D.

Image

A man applies a force of 10 N on a garbage crate. If another man applies a force of 8 N on the same crate at an angle of 60° with respect to previous, then what will be the resultant force and direction of the crate, if crate is stationary.