Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / thowsif_emerson_csm team
NPN Transistor :-
Just as in the case of the PN junction diode, the N
material comprising the two end sections of the NP N
transistor contains a number of free electrons, while the
center P section contains an excess number of holes. The
action at each junction between these sections is the same
as that previously described for the diode; that is,
depletion regions develop and the junction barrier appears.
To use the transistor as an amplifier, each of these
junctions must be modified by some external bias voltage.
PNP Transisitor:-The PNP transistor works essentially the
same as the NPN transistor. However, since the emitter,
base, and collector in the PNP transistor are made of
materials that are different from those used in the NPN
transistor, different current carriers flow in the PNP
unit. The majority current carriers in the PNP transistor
are holes. This is in contrast to the NPN transistor where
the majority current carriers are electrons. To support
this different type of current (hole flow), the bias
batteries are reversed for the PNP transistor.
| Is This Answer Correct ? | 14 Yes | 4 No |
Post New Answer View All Answers
Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?
Explain what is electric traction?
Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?
What do you mean by phasors?
state the working of discharge lamp?
If i am running of spindle at 2000rpm ,but How to spindle stop at the second I am resetting the machine in CNC machines
how many load we can take for lighting
How to determine the breaking capacity such as break down current and break down voltage for VCB and CT's.
In a Impedance Based Distance Relay (Quad Characteristics) - Could there be two different Line Angle(RCA) for Ph-Ph & Ph-Gnd? If So Kindly Let me Know.. Where, What are the advantages of the same?
how do prepare ongc exam.how is it question model.i am electrical. which part covering in electrical.tell me
I Just want do EHS Certified Certification Distance Course From Govt approved,so can any body provide me details.
sir i had plane to do some project with the base of hopkinson test in AC supply its possible
what does mean of RCT and STR in diffrential CT?
Why the dc voltage drop during starting of emergency lube oil pump? The Voltage drop from 135kv to 125 kv for one min. before re-establish to 135kv?
What is stepper motor. What is its uses?
