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 |
what is voltage rise and voltage drop?
What is AMF Panel????
how to calculate induction motor rating (HP) if name plate is missing from motor at site condition ?
6 Answers ABB, apatel, Bhel, Spatel, Voltas,
what bridge circuit is used in Tandelta circuit
I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???
What safety followup during kWh meter isolation
if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?
Draw the wave shape of armature current in a generator subjected to a sudden three phase short- circuit at its terminals. Define various reactance of generator from this wave shape.
What is mean by power factor?
18 Answers Shreem Electric Ltd,
how to calculate the cable size depending on the transformer rating
What is the difference between an insulator and a dielectric?
Why overhead transmission line in triangular shape?
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)