Answer / akshay bisht

For higher values of gain we seek the help of log scale..in terms of bels. But more oftenly decibel is considered to be a better unit than bel. So if simple gain is (a/b) then gain (in bels) is log(a/b) and in decibel it become 10log(a/b)as deci means 10.
Now any quantity X for which power is directly proportional to X its gain is shown as 10log(a/b).e.g. Power itself and Luminous Intensity...
On the other hand any quantity Y for which Power is proportional to square of Y,will have its gain(in decibels) like 10log(a^2/b^2)...This square term will come ahead and gain become...20log(a/b)..
Hv any doubt u are welcome to mail me at(akkinitj@gmail.com)

[NIT JALANDHAR]

Some of similar quantities are..Volatge and Current..

Answer / sameena

20logA is used as voltage gain and 10logA is used as power
gain because the value of power gain is equal to the square of
voltage gain.

Explain what is an inverter?

0 Answers  

---

How many types of Transmission cards are in Ultra BTS?

0 Answers   NSN,

---

What are the advantages and disadvantages of the k-map method?

0 Answers  

---

The magnitude of the gain or integrator transfer function using op-amp is A WR1Cf B -1/WR1Cf C -WR1Cf D 1/WR1Cf

0 Answers  

---

What is the approximate cost of the corrosion penetration monitoring system(cpmp)?

0 Answers  

---

Tell me what are the components has to be done in fpga board (altera)?

0 Answers  

---

what is the difference between electronics and power electronics

1 Answers  

---

what is the main part of UPS?

1 Answers  

---

why six transistors are used to store single bit in sram

1 Answers  

---

What are the features of instrumentation amplifier?

0 Answers  

---

sir i want polytechnic lecturers model papers plzzzzzzzzz send me my mail id: manisri.bobbala@gmail.com

0 Answers  

---

What are the advantages of gray code?

0 Answers  

---