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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.
Q. A charge q(t) = 50 + 1.0t C flows into an electric component. Find the current flow.
calculation of series DC motor
Q. What is DTMF dialling? DTMF dialling 1. Uses push buttons 2. Uses 8 different frequencies in pairs. 3. 16 different characters can be represented. 4. The f
Q. Explain Current and Magnetic Force? The rate ofmovement of net positive charge per unit of time through a cross section of a conductor is known as current, i(t) = dq / dt
what is the use of DStat
What is TXD? TXD- Transmitter Data Output This output pin carries serial stream of the transmitted data bits by with other information like start bit, stop bits and priority
Example of binary subtraction of Negative number Case 2. Negative number is more than the positive number ( i e, answer is negative) Example : Subtract 92 10 ( 101
The Series Resistance rule
A single-phase, 50-kVA, 2400:240-V, 60-Hz distribution transformer has the following parameters: Resistance of the 2400-V winding R1 = 0.75 Resistance of the 240-V winding R2
Cross Section of NMOS with Channel Formed: ON state A metal-oxide-semiconductor field-effect transistor (MOSFET) is based upon the modulation of charge concentration through a
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