Answer Posted / sirish

Also the Capacitive Reactance Xc = 1/(2*pi*f*C)

and as a DC voltage has no frequency associated with it

f = 0

thereby Xc = infinity, and thus is an open to DC.

In a similar fashion for high frequency circuits like RF,
Caps act as a short as Xc tends towards 0.

Explain why bjt is called current control device?

989

---

write a c program to multi(*) of two matrix using pointers?

1920

---

please tell me wat types of technical questions will be asked in Alcatel lucent. and suggest me which site to view

2131

---

Explain what are semiconductor devices?

1066

---

What is a demultiplexer?

1139

---

How are electrons in an atom visualized?

1127

---

What is cache coherence?

1188

---

In a 2 stage RC coupled amplifier, the emitter resistance of 1st stage consists of 2 resistances (Re and Re')in series and the bypass capacitor is connected across only one of them(bigger resistance). Why?

2896

---

HI ALL.. I TOO APPLIED FOR THE POST OF JR.EXECUTIVE ELECTRONICS(AAI).HOW DO U PEOPLE KNOW ABOUT THE EXAM DATE DO U GOT ANY ACK...

1987

---

What is step up cyclo-converter ?

1209

---

What is capacitor?

1293

---

Where will digital and analog technology come into play in the cctv technology in terms of data storage?

1078

---

What is meant by voltage regulation of a dc power supply?

1052

---

Ripple as referred to in a rectifier circuit.

1157

---

Guroscope works on the basis of what?

2082

---