Answer Posted / khurram_bhati01

OP-AMP IS BASICALLY AN IC, E.G 741 WHICH HAVE THE FOLLOWING
CHARACTERISTICS.
HIGH INPUT IMPEDENCE
LOW OUTPUT IMPEDANCE
HIGH GAIN

AN OP-AMP CAN BE USED AS AMPLIFIER AND AS A COMPARATOR.
THESE ARE ITS APPLICATION.

IN AMPLIFER MODE ITS JUST AMPLIFY THE INPUT SIGNAL.
IN COMPARATOR MODE IT IS USED TO SENCE THE TWO INPUT
VOLTAGE, ONE IS REFERANCE AND OTHER VARIES. COMPARATOR
CHANGES ITS OUTPUT STATE AS THE VARING VOLTAGE INCREADED OR
DECREASED FROM THE REFERANCE.

how work microwave anteena in mobile tower

2216

---

how to see the MAC address in your server's ARP table?

2125

---

Explain About RRC states?

1911

---

Explain what is the tri state of a signal?

1106

---

when do we use capacitor and inductor as strong device

2211

---

What is the impact of 3GDT in SGSN?

3791

---

Why π-filters are not suitable for varying loads?

1304

---

What is capacitor?

1244

---

Explain with the help of a diagram the functioning of an adder.

1012

---

why we don't use photodiode in forward-bias?

3680

---

For high frequency applications will you prefer mosfet or igbt? Why?

1144

---

what happen when the rectifier circuit is connect with the tube light?

1997

---

if building "b" height casts a shadow "f ' feet long . the same day a tree "t" feet height will cast a shadow how many feet long ? a)ft/b b)fb/t c)b/ft d)tb/f e)t/fb

2236

---

Describe the operation of series inverter with aid of diagrams. Describe an expression for output frequency, current and voltages. What are the disadvantages of basic series inverter?

1323

---

What is the construction of a solar cell?

1067

---