Question
Write the function of a (i) Transducer and (ii) Repeater in a communication system.

Answer

  1. Transducer: The device which converts one form of energy into another.
  2. Repeater: A repeater picks up signal, amplifies and retransmits them to receiver.

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 plate of thickness t made of a material of refractive index $\mu$ is placed in front of one of the slits in a double slit experiment.
  1. Find the change in the optical path due to introduction of the plate.
  2. What should be the minimum thickness t which will make the intensity at the centre of the fringe pattern zero? Wavelength of the light used is $\lambda$. Neglect any absorption of light in the plate.
Derive the equation of intensity of resultant wave generated due to super postion (or interference) of waves generated from two coherent sources.
Explain the process of leakage of electric charge.
A light ray is refracted from medium (1) to medium (2). Their refractive indices are n1 and n2, respectively and n2 < n1. Write an expression for the critical angle of incidence.
State Kirchhoff's rules. Explain briefly how these rules are justified.
The masses of 11C and 11B are respectively 11.0114u and 11.0093u. Find the maximum energy a positron can have in the $\beta^+$-decay of 11C to 11B.
Water level is maintained in a cylindrical vessel upto a fixed height H. The vessel is kept on a horizontal plane. At what height above the bottom should a hole be made in the vessel so that the water stream coming out of the hole strikes the horizontal plane at the greatest distance from the vessel.

If a constant potential difference is applied across a bulb, the current slightly decreases as time passes and then becomes constant. Explain.
Write the history of magnet in brief.
When two surfaces are polished, the friction coefficient between them decreases. But the friction coefficient increases and becomes very large if the surfaces are made highly smooth. Explain.