what is the voltage present in the telephone?
Answers were Sorted based on User's Feedback
Answer / prakash mp
There are no switches or user adjustments. If the coupler
is connected to a standard telephone line, there will be a
DC voltage present that is higher when the circuit is not
being used than when the line is in use. Noise on the
telephone line will not be coupled to the output of the
coupler when the phone is not in use and the voltage on the
line is greater than 35 volts DC. When the phone is in use
and the voltage drops below 35 volts DC, this circuit
permits all sounds on the couplers input to reach its output
| Is This Answer Correct ? | 1 Yes | 0 No |
Answer / amar
the voltage present in the telephone is about 88v and 20hz
| Is This Answer Correct ? | 2 Yes | 20 No |
DG lube oil and waste oil how to dispose outside and there is any authorised vendors will be there for this.
can anyone tell me can the electromagnetic waves can be reflected back?if so how &by which material it can be reflected back?please tell me so that it can help to my wireless power trasnmission device.
what is relation between motor poles & motor current in 3 phase motor
how can testing using megger?
what is the difference between mho characteristics and quadrilateral chara in distance protection
Why HRG and LRG used beside transformer, what is the purpose
nwhat are the main Components of servo motor?
during installation time of transformer and alternator which points we have to observed?
how do we fix the rating of mcb required for a specific capacity of the electric motor
Advantages of using generator circuit breaker (GCB) scheme in a power station ?
what is safety measures of alternator.
10 Answers HP, MNC,
why we use core type and shell type transformers?
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
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)