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Electronic Communication Systems 2nd Edition by Roy Blake
Edition 2ISBN: 978-0766826847Electronic Communication Systems 2nd Edition by Roy Blake
Edition 2ISBN: 978-0766826847 Exercise 55
The local loop has a resistance of 650 ohms, and the telephone instrument has a ringer voltage of 80 volts when the voltage at the central office is 100 V. Calculate the impedance of the ringer in the telephone.
Explanation
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When the phone is off hook (the subscrib...
Electronic Communication Systems 2nd Edition by Roy Blake
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