Question
Zener diode acts as a/an
✓
Answer
Zener diode is used to supply constant voltage in voltage regulator circuit hence option $(b)$ is correct.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A sphere collides with another sphere of identical mass. After collision, the two spheres move. The collision is inelastic. Then the angle between the directions of the two spheres is
A rectangles solid box of length $0.3\, m$ is held horizontally, with one of its sides on the edge of a platform of height $5\,m$. When released, it slips off the table in a very short time $= 0.01\, s$, remaining essentially horizontal. The angle by which it would rotate when it hits the ground will be (in radians) close to:
→Two polaroids are placed in the path of unpolarized beam of intensity $I_0$ such that no light is emitted from the second polaroid. If a third polaroid whose polarization axis makes an angle $\theta $ with the polarization axis of first polaroid, is placed between these polaroids, then the intensity of light emerging from the last polaroid will be
→Resistance of one carbon filament and one tungsten lamp are measured individually when the lamp are lit and compared with their respective resistances when cold. Which one of the following statements will be true
A meter bridge set up as shown to determine end correction at $A$ and $B$ . When a resistance of $15\,\Omega $ is used in left gap and of $20\,\Omega $ in right gap, then null point comes at a distance $42\ cm$ from $A$ . When these resistances are interchanged null point comes at a distance $57\ cm$ from $A$ . Values of end corrections are
→For harder $X-$ rays
→A hospital uses an ultrasonic scanner to locate tumours in a tissue. The operating frequency of the scanner is $4.2 MHz$. The speed of sound in a tissue is $1.7 \,km-s^{-1}$. The wavelength of sound in the tissue is close to
→The depletion layer in silicon diode is $11\mu m$ wide and the knee potential is $0.6\, V$, then the electric field in the depletion layer will be
→For a $p-$type semiconductor which of the following statements is true ?
→The ratio of the refractive index of red light to blue light in air is