8. A network interface port has collision detection and carrier sensing enabled on a shared twisted pair network. From this statement, what is known about the network interface port?
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- SCR's gate recovery time is _____________sec, for the device which is having reverse recovery time is 37 sec and total commutation time is 65 sec.a) The Channel is a key component to consider in all communications systems. Give two examples of a channel commonly used in communications systems, and for each, the key properties that can impact transmission. Compare twisted-pair and fibre-optic wired channels. Explain how the use of differential signals can be used to improve the signal to noise ratio in a twisted pair channel. i) ii)1. Are the following statements correct or wrong? (a) Thyristors are used only for low voltage, low current applications. (b) MOSFETs are used for high frequency applications. (c) BJT is more efficient than IGBT in high power applications. (d) GTO requires very low current applied to its gate to be turn off. (e) IGBT is a voltage driven device. 2. Are the following statements correct or wrong? (a) Thyristors are preferred to be used in the output stage of 10W IMHz transmitter. (b) MOSFETs are preferred to be used for 1000 kW motor control circuit. (c) TRIAC is used for lighting dimmer circuits. (d) IGBT in high voltage de rectifier circuits (above 5kV level). (e) BJT is the fastest switching device in power applications. Choose the correct answer for the following questions (3-7): 3. The conditions which must be satisfied to turn on the thyristor with its current is more than its latching current are: (a) The anode is more positive than the cathode and a positive current pulse is…
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- a) Calculate the value of IDb) Determine VDSc) What effect has the insulated channel from the gate in MOSFET? (summarize your answer in less than 10 words only) Please answer in short like it definitely don't reject in shorts please It is completely question.. ..7. What is a disadvantage of access techniques such as Frequency Division multiple access (FDMA) and Time Division Multiple Access (TDMA) vs a Demand assigned technique?Telecommunications & Network Describe/draw each applicable term: 1. Draw Encoder,Decoder, Multipleser and their application. 2. Asynchronous and synchronous.