Question
A triode whose mutual conductance is 2.5 m A/volt and anode resistance is 20 kilo ohm, is used as an amplifier whose amplification is 10. The resistance connected in plate circuit will be(a) 1 kW  (b) 5 kW(c) 10 kW(d) 20 kW
       

Answer

(b) 5 kW

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 light source approaches the observer with velocity 0.8 c. The doppler shift for the light of wavelength  5500 Å is(a) 4400 Å(b) 1833 Å(c) 3167 Å(d) 7333 Å
       
The unit of inductance is(a) Volt/ampere(b) Joule/ampere(c) Volt-sec/ampere(d) Volt-ampere/sec
       
A circular coil of mean radius of 7 cm and having 4000 turns is rotated at the rate of 1800 revolutions per minute in the earth's magnetic field (B = 0.5 gauss), the maximum e.m.f. induced in coil will be(a) 1.158 V(b) 0.58 V(c) 0.29 V           (d) 5.8 V 
       
The mutual inductance between a primary and secondary circuits is 0.5 H. The resistances of the primary and the secondary circuits are 20 ohms and 5 ohms respectively. To generate a current of 0.4 A in the secondary, current in the primary must be changed at the rate of(a) 4.0 A/s(b) 16.0 A/s(c) 1.6 A/s(d) 8.0 A/s
       
An object is at a distance of 0.5 m in front of a plane mirror. Distance between the object and image is(a) 0.5 m                                            (b) 1 m(c) 0.25 m(d) 1.5 m
       
The ratio of kinetic energy to total energy in Bohr's Model of $n$ quantum level of electron in hydrogen atom will be :
 ————— gives the information on field strength, direction, and nature of the charge.
An electric dipole is placed along the $x -$ axis at the origin $O$. A point $P$ is at a distance of $20 \ cm$ from this origin such that $OP$ makes an angle $\frac{\pi}{3}$ with the $x-$axis. If the electric field at $P$ makes an angle $\theta$ with the $x-$axis, the value of $\theta$ would be
The angle of dip at a place is $40.6^{\circ}$ and the intensity of the vertical component of the earth's magnetic field $\mathrm{V}=6 \times 10^{-5}$ Tesla. The total intensity of the earth's magnetic field $(I)$ at this place is
 
Which conservation law is obeyed in Einstein's photoelectric equation?