Answer / ssn

Yes, A one frequency signal may not be sufficient, since the
analog and digital signals may look different and the
receiver may not recognize it correctly. To improve the
shape of the signal for better communication, particularly
for high data rates, we need to add some harmonics

Answer / guest

so that at the o/p the harmonics get cancelled otherwise it
will produce noise

in rectifier circuit,we are using the capacitor as a filter to remove the ac signal.but capacitor blocks dc & allows only ac. explain about it?

4 Answers  

---

iam an electronics & comm engg student.i have applied for AAI can u please forward the old and related question papers to my id lali.ece63@gmail.com

0 Answers  

---

What is the difference between synthesised frequency hopping and base band frequency hopping?

0 Answers  

---

what is the advantage of edge triggered devices compared to gated devices?

2 Answers   JMI, TCL,

---

Why inductor reverses its polarity why not capacitor while discharging evenif both are charge storing element?

1 Answers  

---

Define what do you understand by collector reverse saturation? In which configuration does it have a greater value?

0 Answers  

---

What is the difference between CAT 5e communication cable & CAT4 Communication cable

0 Answers  

---

what is CL in CL100 transistor?

1 Answers   TCS, Wipro,

---

What is SCADA ? What are its main components ? How it works ? When we need a SCADA & where ? Is there any similarities and comparison b/w PLC & SCADA ? What are its Pros & Cons ? What are the faults that occur in it most ?

2 Answers  

---

What is meant by step-up and step-down chopper?

0 Answers  

---

How will you send and receive data to a micro-processor? (One method is I/O mapped I/O which is the other one?)

1 Answers   DRDO,

---

Explain why cannot we use leds for rectification purpose?

0 Answers  

---