Download App

Semiconductor Electronic: Material, Devices And Simple Circuits — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsSemiconductor Electronic: Material, Devices And Simple Circuits2 Marks
Question
Define trans conductance of a transistor.
✓

Answer

The trans conductance of a transistor is defined as the ratio of the change in collector current to the change in base voltage at constant collector voltage.
$\text{gm}=\Big(\frac{\Delta\text{I}_\text{C}}{\Delta\text{V}_\text{b}}\Big)_{\text{V}_\text{C}=\text{Cons}\tan\text{t}}$

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

Explore more

More "2 Marks Questions" from Semiconductor Electronic: Material, Devices And Simple Circuits→Semiconductor Electronic: Material, Devices And Simple Circuits — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

Radii of two circular current carrying coils are $r_1$ and $r_2$ respectively and number of turns in them are $n_1$ and $n_2$ respectively. They are joined in series. Prove that the ratio of produced magnetic fields at their centers is $n_1 r_2: n_2 r_1$. If coils are joined in parallel, then the ratio of magnetic fields produced at the centers is equivalent to $\left(r_2 / r_1\right)^2$.
→
Lithium (Z = 3) has two stable isotopes $^6Li$ and $^7Li.$ When neutrons are bombarded on lithium sample, electrons and $\alpha$-particles are ejected. Write down the nuclear process taking place.
→
Two magnetic poles, one of which is $10$ times as strong as the other, exert on each other a force equal to $9.604\  mN$ , when placed $10 \ cm$ apart in air. Find the strength of the two poles.
→
By what percent will the capacitance of a spherical conductor increase if the amount of charge on a spherical conductor is tripled?
→
An electric dipole is held in a uniform electric field:
  1. Show that the net force acting on it is zero.
  2. The dipole is aligned parallel to the field. Find the work done in rotating it through the angle of $180^\circ$.
→
Draw the series L-C-R AC circuit and obtain the relationship between voltage and current for this circuit. (Derive the necessary equations.)
→
Write down the definition of energy density and derive the equation of energy density of electric field.
→
What is called point dipole?
→
Explain the terms ‘depletion layer’ and ‘potential barrier’ in a p-n junction diode. How are the (a) Width of depletion layer, and (b) Value of potential barrier affected when the p-n junction is forward biased?
→
Obtain Faraday's law of induction explaining Faraday's experiments regarding electric induction with reference to magnetic flux.
→