Download App

Electronics — Physics STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 SciencePhysicsElectronics1 Mark
MCQ
A transistor is used in common emitter mode as an amplifier. Then
  • A
    The base-emitter junction is forward biased
  • B
    The base-emitter junction is reverse biased
  • C
    The input signal is connected in series with the voltage applied to the base-emitter junction
  • ✓
    a, c
✓

Answer

Correct option: D.
a, c
a, c

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 "M.C.Q (1 Marks)" from Electronics→Electronics — all question types→Physics STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

A diverging lens with magnitude of focal length $25\ cm$ is placed at a distance of $15\ cm$ from a converging lens of magnitude of focal length $20\ cm$. A beam of parallel light falls on the diverging lens. The final image formed is
→
Find the equivalent capacitance between $A$ and $B$
→
A non-conducting ring of radius $0.5\,m$ carries a total charge of $1.11 \times {10^{ - 10}}\,C$ distributed non-uniformly on its circumference producing an electric field $\vec E$ everywhere in space. The value of the line integral $\int_{l = \infty }^{l = 0} {\, - \overrightarrow E .\overrightarrow {dl} } \,(l = 0$ being centre of the ring) in volt is
→
Which color band in the color coding of a resistor has the tolerance $\pm2\%$?
→
What happens to the plates of the apparatus if we measure alternating charge using a Gold-leaf oscilloscope?
→
Two springs $A$ and $B(k_A= 2k_B)$ are stretched by applying forces of equal magnitudes at the four ends. If the energy stored in $A$ is $E,$ that in $B$ is:
→
An electron in the hydrogen atom jumps from excited state $n$ to the ground state. The wavelength so emitted illuminates a photosensitive material having work function $2.75\,\, eV.$ If the stopping potential of the photoelectron is $10\,\, V,$ then the value of $n$ is
→
When water droplets merge to form a bigger drop:
→
If a spark is produced on removing the load from an $AC$ circuit then the element connected in the circuit is.
→
A compass needle, which shows the direction at the earth's magnetic pole is:
→