Answer / girish

Apply kvl to ce loop
Vcc=IcRc+Vo
when Ib increases, Ic=beta x Ib increases which increses
IcRc.
therefore Vo decreses to as Vcc is constant..
Thus when Ib is increasing(Positive half cycle) output
decreses(goes negative) and when Ib decreses output V0
increses..producing 180 phase shift between input and output

Answer / nandu202

Before reading my answer,i ask u 2 refer transistor biasing
circuit.

If u look at the o/p:
o/p eqn. can be written as:
Vce=Vcc-(Ic*Re);

As i/p increases,Ib(which wil b the i/p in CE Mode wil
increase so Ic increases so drop across Re increases
resulting in decreased Vce.

If u take a sinusoidal i/p,Correspondingly u add all d
points u wil get a 180 phase shift

Answer / himanshu

see ans in book

Answer / sana

as Vo=Vcc-IcRc
Vcc= constant so we can say that Vo iz directly proportional to IcRc. now when Vb(base voltage) increase Ib increase so Ic increase and voltage drop across Rc increase so Vo decrease....... producing 180 phase shift

Answer / jyothish

In CE configuration we are plotting the output graph currosponding to the input current Ib. So if the input current increases it increases the collector current Ic. But increase in Ic reduces the voltage drop across the collector and emitter terminals(Vce). So at increased input current a reduced output voltage is occured. So output has 180 Degree phase shift.

What happens if the series current double?

0 Answers  

how can H.V busbar in a powerstation can be protected?

1 Answers   Unitech,

i have a Connected Load of 280KW and Maximum Demand of 224KW to one of SMDB under design with me. which criteria should i consider to design panel and main cables connected Load or Maximum Demand 1)Breaker rating 2)Panel Busbar rating 2)Incommer cable sizing (ignore Voltage drop)

1 Answers  

why exciter frequency 150 Hz ?

1 Answers   Siemens,

should %impedance be high or low in a power transformer? if so why?

0 Answers  

what is the working of hydrent system.

2 Answers  

What is difference between slip rings and carbon burushes?

2 Answers   Hyundai, IVRCL,

magnetic circuit consume energy

3 Answers  

Importance of fault current in power transformers and how to monitor the same? How is it different from winding temperature?

0 Answers   Impulse,

what is the diffrence between kav and kvar?

5 Answers  

Based on what the rating of machines are provided??(ANswer should in single word)

19 Answers   Asian Paints, Bhel,

Briefly define and explain the following different types of Pulse Amplitude Modulation (PAM) with some examples. i) 2-PAM ii) 4-PAM iii) 8-PAM iv) 16-PAM v) Quadrature Amplitude Modulation (QAM)

0 Answers   UOG,