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Q. What are transmission bridges? How do they assist in satisfying the connectivity?
Ans: A typical transmission bridge is demonstrated in figure. Series capacitance and shunt inductances of the two relays provide a high-pass filter to transmit the AC speech signals whereas relays respond independently to the DC loop/disconnect signals from calling and called customer.
Illustrate Common Emitter configuration, current amplification factor and collector amplifier. Describe transistor as an amplifier.
A four-pole, three-phase inductionmotor is energized from a 60-Hz supply. It is running at a load condition for which the slip is 0.03. Determine: (a) The rotor speed in r/min.
Q. What are the various tones used in stronger telephony? When called party line is obtained, exchange control equipment transmits out the ringing current to telephone set of t
A unity negative feedback control system has an open loop transfer function consisting of two poles, two zeros and a variable positive gain K. The zeros are located at -2 and -1, a
Explain In brief about the Robots - Robot is programmed with a series of instructions that enable it to carry out a series of tasks - On the other hand, an operator manually
Tools for Power Supply The several universal tools those could be applied in the power-sector for the improvement of organizational efficiency and effectiveness. These tools v
Q. Define amplification factor, drain resistance and transconductance and derive the relationship between drain resistance and trans conductance? Drain resistance It is the
how an power factor meter works
Give the names of four alloys along with their composition, which are used for making heater and thermocouple elements. Constantan or Eureka {(55 to 60 percent) Cu, (45 to 40 p
Q. Calculate the stator input current? The parameters of the equivalent circuit shown in Figure for a three-phase, wye-connected, 220-V, 10-hp, 60-Hz, six-pole induction motor
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