Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Calculate the maximum length of an optical fibre that exhibits 0.8dB/km attenuation if the optical output is 10mW and the power launched at the input is 150mW. [Hint: Loss, L=10 log (Po/Pi)]
Ans:
Given
Po=10mW
Pi=150mw
We have
Loss, L=10 log (Po/Pi)
Substituting for Po and Pi,
L= -11.76dB
For 1km , the loss is 0.8dB.
Let the length of the cable be x km. Then, for x kms, the loss is -11.76dB.
Solving for x, we have
x= (11.76 x 1)/0.8
=15km
i.e the length of the cable is 15km approximately.
Q. Discuss the disadvantages of an RC coupled amplifier? RC coupled amplifiers have a few disadvantages. The resistors use dc power and so the amplifier has low efficiency. The
Hello, Please how do I compare performance of a digital modulation scheme with matlab?
Q. If an analog message that has a spectral extent of 15 kHz is sampled at three times the Nyquist rate, determine the sampling rate.
Multiplexed Address/ Data Bus Pins AD 7 - AD) are used for multiplexed address data bus. This bus is bidirectional input output and serves two purpose. Initially the bus
how does a colpitts oscillator works an also explain the principle
Explain the Procedure for design of Sequential Circuits? The design of the synchronous sequential circuit starts from a set of specifications and culminates in a logic diagram
transformer voltage induced in armatur of ac commentator machin in case tha field flux in sinosoidal?..
A copper cylinder 40 cm diameter and 10 mm thick is nearly wound with a layer of 4mm diameter steel wire under a tensile stress of 80 Mpa. If the steam under a pressure of 5 Mpa is
Q. Consider the op-amp circuit of Figure. Sketch the waveforms of v S and v o , if v S is a sinusoidal voltage source with a peak value of 2.
Q. Explain how phase angle measurement are carried out with vector impedance meter. Sol. Impedance measurements are concerned with both the magnitude (Z) and the phase
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd