Answer / rinkesh

pwm stands for pulse width modulation.
Using this technique the width of the pulse can be changed so
that the frequency and timing of the signal can be changed.
And the power content of the signal can be maintained.

Answer / sukhoi

pwm-pulse width modulation
             advantages
1,better efficiency than power supply(since,transistor is working in cut-off and saturation only)
2,decrease in size and cost(since,the high operating frequency used for switching transistors allows to use of smaller transformers,capacitors,and inductors)

connecting 2 transistor seriesly.In 1st trans base applying 5v then how the current will go.

1 Answers  

---

Minimisation of Boolean logical expressions helps to reduce A Space B Number of gates C Cost D Space,number of gates and cost

2 Answers  

---

what are the basic logic elements?

0 Answers  

---

What is the correct way of weather proofing?

0 Answers   NSN,

---

State the kirchoff`s laws.

0 Answers  

---

which remote subscriber provide voice communication?

0 Answers  

---

Explain why cannot we use leds for rectification purpose?

0 Answers  

---

pls send rrb question paper of je of last 5 years at my email id i.e. singh.anni88@yahoo .co.in

10 Answers   CMS, RRB,

---

I am studing Diploma Electronics from International Council for Management Studies-CHENNAI. Is it useful for getting engineering job within india or international ?

0 Answers  

---

Explain zener breakdown?

0 Answers  

---

how to cancel cable inductance in power supplies without adding any ckt parallel to cable?

2 Answers  

---

Explain the steps involved in demodulating a signal.

0 Answers  

---