Answer Posted / venkat

Tyristor is a semiconductor device having three or more junction...
Such a device acts as a switch without any bias
and can be fabricated to hav voltage ratings of several
hundred volts to current ratings of from a few
amperes to thousands of amprees ...
The family consits of scr. .tria...diac... etc...
diode is a junction of two materials ... f
for example if its a pn junction one with excessof holes and the other with excess of electrons

Define pair?

1050

---

Draw the equivalent circuit of ujt.

1223

---

What do you mean by donor and acceptor impurities?

1055

---

What is the significance of the bandwidth of an amplifier?

1103

---

what is the types of transmission

2076

---

how much power is required for a 200 watts bulb if 60p/unit is observed?

1907

---

Explain the construction of a jfet

1141

---

....................... regulator operates the power transistors as high frequency on/off switch. A Series B Short C Switching D None of these

1778

---

What are the essential components of a crt?

1190

---

What is conductance? How is it measured?

1241

---

why always current in some amp and voltage is 230?

4519

---

What is mean by Compression technic and its formula? How many types of adaptors are there? How adaptive algorithm works for speech compression using Cosine packet transform?

1984

---

hiii,i am richa.. i want to know .. the criteria for appearung for BEL... how much percent i shuold have and is it will be for per semester or for a whole year

2009

---

Explain what is a voltage follower?

1013

---

What do you understand by voltmeter multiplier?

1089

---