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Data Communication
1. Write short notes on:
a. Sky wave propagationb. Line of sight propagation
2. List and describe the different types of errors that occur during data transmission.
3. What is the concept of multiplexing. Explain about Frequency-division multiplexing.
4. Illustrate Code-Division Multiple Access (CDMA).
5. Define topology? Explain the types of LAN topologies.
6. Briefly write short notes on IEEE 802.1Q VLAN standard.
Step Up Chopper In this chopper average output voltage is greater than input voltage. The circuit different mode of operation and current waveforms are show. When
Explain the discovery of neutron. Mention its properties. Discovery of Neutron: The existence of neutron was first predicted by Rutherford in the year 1920. But it was discov
Trivector Meter A trivector meter is designed to record active, reactive and apparent energy along with MD indicators on all. The trivector meter is a compact unit. It exchan
Consider an electromagnet, as shown in Figure, which is used to support a solid piece of steel and is excited by a coil of N = 1000 turns carrying a current i = 1.5 A. The cross-se
Particles of mass M and m separated in space by a distance R exert a mutually attractive gravitational force F on one another given by where G is the universal gravitationa
if the sheet resistance of a tin oxide is 100 ohms, what is the thickness of the oxide layer?
Q. Why FET is a voltage sensitive device explain from the drain characteristics? The JFET consists of a thin layer of n-type material with two ohmic contacts,the source S and t
For the circuit shown in Figure, use KCL and KVL to determine i 1 , i 2 , v bd and v x . Also, find v eb .
1. The rejection criteria of an investment project, as evaluated from the NPV method is that NPV should be equal to zero. 2. Technical feasibility is the only criteria to dete
Calculate Voltage and Current Phasors on a Phasor Diagram A synchronous motor is operated at rated load and unity power factor. The field current is increased by 20%. Show the
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