MCQ
In a triode amplifier, the value of maximum gain is equal to
  • A
    Half the amplification factor
  • Amplification factor
  • C
    Twice the amplification factor
  • D
    Infinity

Answer

Correct option: B.
Amplification factor
The maximum voltage gain $(A)_{\sim}=\mu$ (Which is obtained when $R=\infty$ ).

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

A potentiometer having the potential gradient of $2\  \mathrm{mV} / \mathrm{cm}$ is used to measure the difference of potential across a resistance of $10\  \mathrm{ohm}$. If a length of $50 \mathrm{~cm}$ of the potentiometer wire is required to get the null point, the current passing through the $10\  \mathrm{ohm}$ resistor is (in $m A)$
Water does not wet an oily glass because
The objective of a compound microscope is essentially
A man is riding on a cycle with velocity $7.2 \mathrm{~km} / \mathrm{hr}$ up a hill having a slope $1$ in $20.$ The total mass of the man and cycle is $100 \mathrm{~kg}$. The power of the man is
A $5 m$ long aluminium wire $\left(Y=7 \times 10^{10} N / m ^2\right)$ of diameter $3 mm$ supports a $40 kg$ mass. In order to have the same elongation in a copper wire ( $\left.Y=12 \times 10^{10} N / m ^2\right)$ of the same length under the same weight, the diameter should now be, in $mm$.
$A$ and $B$ are two wires. The radius of $A$ is twice that of $B$. They are stretched by the some load. Then the stress on $B$ is
When the electron in the hydrogen atom jumps from $2^{-}$orbit to $1^{-}$ orbit, the wavelength of radiation emitted is $\lambda$. When the electrons jump from 3 orbit to 1 orbit, the wavelength of emitted radiation would be
The trajectory of a particle moving in vast maidan is as shown in the figure. The coordinates of a position $A$ are $(0,2)$. The coordinates of another point at which the instantaneous velocity is same as the average velocity between the points are

For one complete cycle of a thermodynamic process on a gas as shown in the $P-V$ diagram, Which of following is correct
Image
A bomb of mass $9 \mathrm{~kg}$ explodes into 2 pieces of mass $3 \mathrm{~kg}$ and $6 \mathrm{~kg}$. The velocity of mass $3 \mathrm{~kg}$ is $1.6 \mathrm{~m} / \mathrm{s}$, the K.E. of mass $6 \mathrm{~kg}$ is