Why we are using -48v in equipments?
Answer / nitesh
when we have +ve voltage we can not transmit for long
distance cause that will come to 0 volt or voltage get
attenuated but if we have -48 volt that voltage lower to
ground potential losses will be very less couse always
energy flows from higher poitential to lower so so -48
lower potental simply never come to ground potential
| Is This Answer Correct ? | 13 Yes | 4 No |
1.support that band limited signals are not realisable. and realisable signals are having infinte band width
Explain am and fm.
what is a bleeder resistor?
What is non-weighted code?
What is meant by the deflection sensitivity of a cro?
can u send me ttq upto 2008 on my email id pooja_bora18@yahoo.com.sorry for the trouble.
i/p sec of atransformer is 230V 5a o/p spc is 12v 1a so i/p power will be 1150w o/p power will be 12w then how the power transfer theorm matching with this??
2 Answers Bosch, Surya Software,
what is the problem with parallel communication?
Sir, I hav applied for the post of sec. engg in RRB in telecom-sigal domain. Can u suggest hows the question pattern. Do I hav 2 follow technical books or general aptitude books ?
How many maximum PWSA cards can be inserted in a Ultra BTS cabinet How many maximum PWSB cards can be inserted in a Ultra BTS cabinet How many maximum PWSC cards can be inserted in a Ultra BTS cabinet What is the output power rating of one PWSA card What is the output power rating of one PWSB card What is the output power rating of one PWSC card What is the function of Receiver Multicoupler (M2xA or M6xA) How many TRX's are supported by one Receiver Multicoupler- M2xA How many TRX's are supported by one Receiver Multicoupler- M6xA What is the function of Remote Tune Combiner (RTxx) unit The FIU19(E) units main LED is red. What is the meaning?
Define pair?
What is the function of DISTRIBUTION TRANSFORMER?
Civil Engineering (5086)
Mechanical Engineering (4453)
Electrical Engineering (16638)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)