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ankush


{ City } faridabad
< Country > india
* Profession * engg.
User No # 23728
Total Questions Posted # 16
Total Answers Posted # 79

Total Answers Posted for My Questions # 95
Total Views for My Questions # 225872

Users Marked my Answers as Correct # 2006
Users Marked my Answers as Wrong # 953
Questions / { ankush }
Questions Answers Category Views Company eMail

What is power factor? Whether it should be high or low ? why?

9 Electrical Engineering 27434

srij i need the relationship b/w KW AND KWH and with an electrical example. plz send if u can?

4 Electrical Engineering 3802

how to calculate capacitor bank value to maintain unity power factor plz xplain with some suitable xample?

4 Electrical Engineering 15492

xplain in detail d pr. of synchronous motors? why syn. generators r used for the production of electricity?

4 Electrical Engineering 5392

wts d diff b/w C.T. & P.T.?

9 Electrical Engineering 14198

plz tell me in detail about c.t. and p.t. ?

Reliance, SCL,

3 Electrical Engineering 6328

WHO AMONG THE FOLLOWING DESCRIBED THE PROTOPLASM AS THE BASIS OF LIFE? A) TH HUXLEY B) LEEUWENHOEK C) RUDOLF VIRCHOW D) JC BOSE

2 Cell Biology 8751

WHICH OF THE FOLLOWING PAIR IS INCORRECT? A) ROENTGEN: X-RAY B) NEWTON: LAW OF GRAVITATION C) FARADAY: DIFFUSION OF GASES D) PASTEUR: BACTERIOLOGY

4 General Physics 9292

NUMISMATICS IS THE STUDY OF A) COINS B) NUMBERS C) STAMPS D) SPACE

Coins, Dabur, ITBPF Indo Tibetan Border Police Force, Muskan,

9 General Physics 18142

Study of life in outer space is called A) Endobiology B) Exobiology C) Entrobiology D) Neobiology

Exobiology, SSC,

15 General Science 36616

Mr. mohh sahid m not satisfied for ur answer to the que weather the size of transformer increases or decreases withchange in fr for more detail go to the answer given by me

Sail,

Electrical Engineering 1135

Explain RYB?

21 Electrical Engineering 58322

what is ferranti effect?

9 Electrical Engineering 11021

how to read AWG n how to convert AWG reading into mm?

1 Electrical Engineering 4327

two way ckt diagram can be drawn by how many ways? give diagram

Electrical Engineering 977




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Answers / { ankush }

Question { 2074 }

What is the diference between increased saety motors and
non sparking motors?


Answer

brushless motors

Is This Answer Correct ?    2 Yes 1 No

Question { BEL, 7867 }


what are the types used for alternator earthing,what will
happen if more than two alternator is working in
parallel with each having own system earthing.is there any
possibility for circulating current in between two system.


Answer

the two types of earthing is used: 1. pipe type earthing
2. sheet type earthing
NOTHING WILL HAPPEN WHEN TWO ALTERNATORS ARE WORKING
PARALLEL WITH EACH HAVING ITS OWN EARTHING.
NO THERES NO POSIBILITY OF CURRENT CIRCULATION.

Is This Answer Correct ?    7 Yes 12 No


Question { Ecil, 29121 }

1KVA transformer of different frequencies of
50hz,100hz,500hz&1000hz. which one of these transformer has
big size? Give reason


Answer

Mr. Mohh. Shahid
if v/f=flux
then fr is inversly proportional toflux
then if u increase the fr the flux will decrease
and so the core area also decreases.

all this is for the constant voltage

but for the constant flux the fr is directly proportional
to the voltage

so if the voltage increases the insulation increases and
hence the size of the transformer increases.
then in both the casesthe action is opposite

then how can u say that the size of the transformer
increases.
check it out

Is This Answer Correct ?    1 Yes 6 No

Question { 15269 }

what is the difference in inductance and resistance.both
oppose the flow of current but how.resistance having + ve
power in both cycle while inductance having both power.


Answer

resistance is wat which resists the flow of current and
produces voltage drop
totally cause of power drop
but::::::;; inductor opposes the change in current
and store the current in the form of magnetic energy.
it doesnt causes any power loss



dats it isnt it so simple

bacho kuch pada karo


nahi to papu fail ho jayega.

Is This Answer Correct ?    7 Yes 3 No

Question { IBM, 13430 }

why it is important to earth neutral of 3 phase transformer?


Answer

it is done to make the neutral at zero potential
coz if there is unbalance in potential the neutral may
shift.

Is This Answer Correct ?    11 Yes 1 No

Question { Intergulf, 129696 }

what is the difference between the HT Cable and LT Cable ?


Answer

lt cable contains neutral
wareas dere is no neutral in ht cables

Is This Answer Correct ?    53 Yes 28 No

Question { Bhel, 4961 }

seromechanism


Answer

first of all it is servomechanism not sero mechanism
it s used to serve any system an error free mechanism
it uses a feedback signal for the correction of the output
signal'

Is This Answer Correct ?    0 Yes 1 No

Question { RRB, 3441 }

which meter used to measure a flus


Answer

flux meter

Is This Answer Correct ?    5 Yes 3 No

Question { MX Technology, 3692 }

Dear All

please ive me ur ideas...

What is the major diff between cu conductors and Al
conductors ?


Answer

cu: 1. costly
2. higher current rating
3. less power losses
4. stronger than Al
5. 1 sqmm of cu can take current upto 4.5 amp( 2nd
point)
6. more heat resistive
7. good conductor coz of higher current rating
Al: 1. cheaper
2. low current rating
3. more power losses than cu
4. weaker
5. 1 sqmm = 1.2 amp
6. less heat resistive
7. good conductor but cu

Is This Answer Correct ?    14 Yes 0 No

Question { 3312 }

what is NANO TECHNOLOGY?


Answer

nano technology is a branch of sc. that deals with the
study of matter at nano scale i.e. at atomic and molecular
level.

Is This Answer Correct ?    3 Yes 0 No

Question { 3147 }

what is MEMS and any one of it applications?


Answer

What is MEMS Technology?
Micro-Electro-Mechanical Systems (MEMS) is the integration
of mechanical elements, sensors, actuators, and electronics
on a common silicon substrate through microfabrication
technology. While the electronics are fabricated using
integrated circuit (IC) process sequences (e.g., CMOS,
Bipolar, or BICMOS processes), the micromechanical
components are fabricated using compatible "micromachining"
processes that selectively etch away parts of the silicon
wafer or add new structural layers to form the mechanical
and electromechanical devices
MEMS promises to revolutionize nearly every product
category by bringing together silicon-based
microelectronics with micromachining technology, making
possible the realization of complete systems-on-a-chip.
MEMS is an enabling technology allowing the development of
smart products, augmenting the computational ability of
microelectronics with the perception and control
capabilities of microsensors and microactuators and
expanding the space of possible designs and applications.
Microelectronic integrated circuits can be thought of as
the "brains" of a system and MEMS augments this decision-
making capability with "eyes" and "arms", to allow
microsystems to sense and control the environment. Sensors
gather information from the environment through measuring
mechanical, thermal, biological, chemical, optical, and
magnetic phenomena. The electronics then process the
information derived from the sensors and through some
decision making capability direct the actuators to respond
by moving, positioning, regulating, pumping, and filtering,
thereby controlling the environment for some desired
outcome or purpose. Because MEMS devices are manufactured
using batch fabrication techniques similar to those used
for integrated circuits, unprecedented levels of
functionality, reliability, and sophistication can be
placed on a small silicon chip at a relatively low cost.

Is This Answer Correct ?    1 Yes 0 No

Question { 12743 }

What is the function of an exciter in a generator?


Answer

exciter as per its name provides exitation to the
generator. it gives the starting torque to the generator
which helps in pre acceleration of the generator.
in case xciter is not there the excitation can be provided
with the help of prime movers which are hand driven.
if need something else ask: ER. ANKUSH MIGLANI
9718151073
ankushmiglani2000@gmail.com

Is This Answer Correct ?    6 Yes 8 No

Question { Siemens, 131246 }

What is the difference between MCB & MCCB,
Where it can be used,


Answer

MCB - MINIATURE CIRCUIT BREAKER
MCCB - MODULE CASE CIRCUIT BREAKER
MCB RATING : 63 AMP (MAXIMUM) i.e. in the form of tpn(
THREE PHASE + NUETRAL)
MCCB _ 63AMP (min.)
MCB IS USED WHERE LOAD IS LOW BUT MCCB IS USED WHERE LOAD
IS HIGH AND USE AS INCOMER.WHILE THE MCB IS USED FOR
OUTGOING.

Is This Answer Correct ?    225 Yes 159 No

Question { Coca Cola, 48793 }

What is encoder, how it function


Answer

IT IS AN ELECTRONIC DEVICE USED TO CONVERT THE DATA OR
INSTRUCTION INTO CODES AND TO RE USE D DATA DECODER IS USED
TO OBTAIN THE DATA IN REAL FORM.
An encoder is a device used to change a signal (such as a
bitstream) or data into a code. The code may serve any of a
number of purposes such as compressing information for
transmission or storage, encrypting or adding redundancies
to the input code, or translating from one code to another.
This is usually done by means of a programmed algorithm,
especially if any part is digital, while most analog
encoding is done with analog circuitry.


Is This Answer Correct ?    115 Yes 14 No

Question { MEIL, 397762 }

I want formula to calculate cable size as per load given in
kw & amp.I searched many sites but didn't right answer.Plz
reply me asap.


Answer

sorry i dont have the xat formula for that but
for ALUMINIUM CABLE: 1sq.mm = 1.2 A of current
CU: 1sq.mm = 5.0 A of current
and the relation b/w A & KW IS
1KW= 1000*A*240*COS#
A- CURRENT
240= VOLTAGE
COS# = POWER FACTOR (.8 TO .99)
NOW IF U KNOW THE EXACT CURRENT LOAD OR LOAD IN THE FORM OF
KW U CAN EASILY FIND THE AMPERE RATING.
AFTER FINDING THE AMPERE RATING U CAN CALCULATE THE THE
SIZE OF THE CABLE. ANKUSH MIGLANI
9718151073
ankushmiglani2000@gmail.com

Is This Answer Correct ?    535 Yes 298 No

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