MCQ
The PN junction diode is used as
  • A
    An amplifier
  • A rectifier
  • C
    An oscillator
  • D
    A modulator

Answer

Correct option: B.
A rectifier
 A rectifier

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

When light propagates in vaccum there is an electric field and a magnetic field. Which of the following is not true about these field?
A telescope using light having wavelength $5000\, Å$ and using lenses of focal $2.5$ and $30\, cm$. If the diameter of the aperture of the objective is $10\, cm$, then the resolving limit and magnifying power of the telescope is respectively
Carbon, Silicon and Germanium atoms have four valence electrons each. Their valence and conduction bands are separated by energy band gaps represented by $(E_g)_C$, $(E_g)_{Si}$ and $(E_g)_{Ge}$ respectively. Which one of the following relationship is true in their case?
If an electron enters a magnetic field with its velocity pointing in the same direction as the magnetic field, then
Let V and E represent the gravitational potential and field at a distance r from the centre of a uniform solid sphere. Consider the two statements:
a.The plot of V against r is discontinuous.
b.The plot of E against r is discontinuous.
A man runs towards a mirror at a speed 15 m/s The speed of the image relative to the man is
Two identical short bar magnets, each having magnetic moment $M$ are placed a distance of $2d$ apart with axes perpendicular to each other in a horizontal plane. The magnetic induction at a point midway between them is 
A thin prism $P_1$ with angle $6^o$ and made from glass of refractive index $1.54$ is combined with another thin prism $P_2$ of refractive index $1.72$ to produce dispersion without deviation. The angle of prism $P_2$ will be
A particle of mass $m$ carrying charge $q$ is accelerated by a potential difference $V$. It enters perpendicularly in a region of uniform magnetic field $B$ and executes circular arc of radius $R$, then $\frac{q}{m}$ equals
Glass has refractive index m with respect to air and the critical angle for a ray of light going from glass to air is q. If a ray of light is incident from air on the glass with angle of incidence q, the corresponding angle of refraction is