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A multimode step index fibre along with a core diameter of 80µm and a associative refractive index difference of 1.5% is operating at a wavelength of 0.85µm. If the core refractive index is 1.48, calculate the V number and the number of guided modes. Given, core diameter, d=80µm Δ=1.5%=0.015 Λ=0.85µm n1=1.48We know that Numerical Aperture, Sinψ = n1 (2Δ)½ =1.48 (2 x 0.015)½ =0.2563 i.e. (n12- n22)½ =0.2563 (1.482- n22)½ =0.2563Squaring, 1.482- n22 =0.0657 i.e. n2=1.4576We know that V number is given through V= Πd (n12- n22)½ / Λ Substituting the values for d, n1, n2 and Λ, we get V=75.78Take V=76
Number of modes= V2 /2= 762 /2 = 2888
A6KVA,100V/500V single-phase transformer has a secondary terminal voltage of 487.5 volts when loaded. determine the regulation of the transformer
List the various addressing modes present in 8086? There are 12 addressing modes are present in 8086. They are, (a) Register and immediate addressing modes _ Register ad
Explain 8259 Pin Diagram. The 8259A adds 8 vectored priority encoded interrupts to the microprocessor. It can be expanded to 64 interrupt requests by using one master 8259A and
Unconditional Return RET Instruction: This instruction is used to transfer the program sequence from subroutine to the calling program unconditionally. The instruction forma
what is the literature review about wye delta transformation?? for 3 paragraphs atleast*
Q. A transmission line with air dielectric is 25 m long. Find, in wavelengths, how long the line is at frequencies of 1 kHz, 10 MHz, and 100 MHz.
Q. How to convert Binary to Decimal number system? It is extremely easy to convert from a binary number to a decimal number. As like the decimal system, we multiply each digit
Q. What can explain the failure of relative PPP to hold in reality? Answer: Government procedures of the price level differ from country to country. One cause for thes
Q. Illustrate the operation performed by instruction OUT 47 h, AL. Ans: It transfers contents of AL to I/O port 47h. Notice that I/O port number appears as 0047h on the 16 b
Write a control word for counter 1 of 8253 / 8254 that selects the following options: load least significant byte only, mode 5 of operation and binary counting. Then write an ins
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