Question

A crystal diode is a

(a) Non-linear device

(b) Amplifying device

(c) Linear device

(d) Fluctuating device

Answer

(a) Non-linear device

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 radioactive sample at any instant has its disintegration rate 5000 disintegration per minute. After 5 minutes, the rate is 1250 disintegrations per minute. Then, the decay constant (per minute) is

(a) 0.8 In 2

(b) 0.4 In 2

(c) 0.2 In 2

(d) 0.1 In 2

In which of the following transitions will the wavelength be minimum?

The photoelectric threshold wavelength of a certain metal is 3000Å. If the radiation of 2000Å is incident on the metal

(a) Electrons will be emitted

(b) Positrons will be emitted

(c) Protons will be emitted

(d) Electrons will not be emitted

A thin oil layer floats on water. A ray of light making an angle of incidence of 40° shines on oil layer. The angle of refraction of light ray in water  is ()

(a) 36 .1°

(b) 44.5°

(c) 26. 8° 

(d) 28.9°

The material of fuse wire should have

(a) A high specific resistance and high melting point

(b) A low specific resistance and low melting point

(c) A high specific resistance and low melting point

(d) A low specific resistance and a high melting point

If the bandgap between valence band and conduction band in a material is 0eV, then the material is:
Moving charge produces:

An electric motor operates on a 50 volt supply and a current of 12A. If the efficiency of the motor is 30%, what is the resistance of the winding of the motor

(a) 6 Ω

(b) 4 Ω

(c) 2.9 Ω

(d) 3.1 Ω

Photoelectric effect supports quantum nature of light because:

The torque acting on a dipole of moment   in an electric field   is

(a)    

(b)  

(c) Zero

(d)  ×