Search & Filtering
How many characters per second can be transmitted over a 9600-baud line in each of
the following modes? (Assume a character code of eight bits.)
a. Synchronous serial transmission. Also draw timing diagram.
b. Asynchronous serial transmission with two stop bits. Draw timing diagram
c. Asynchronous serial transmission with one stop bit. Draw timing diagram.
Q2/ Estimate the fiber fault location if the time reflected from front pulse is 10 ns
and the reflected from far ends pulse is 15 ns, assume the core material is glass.
38. A 12-ohm resistor is connected in parallel with a series combination of resistors of 8 and 16 ohms. If the drop across the 8-ohm resistor is 48 volts, determine the total impressed emf and the total current.
45. Two equal resistors RA and Rв are connected in parallel and to a 120-volt source. What potential difference exists between the midpoint of RA and a point that is one-third from either end of RB?
Design a transistor fixed bias circuit with VCC = 12V, VBE = 0.7V, β=100 and RC =1KΩ to operate in middle of the Load line (for IC = 6mA), cut off region (for IC = 0.5
mA) and saturation region (for IC = 11.5 mA). Determine the corresponding values of
RB and VCEQ for the three different cases.
3 Explain if the priority method is not used, then what other possible method
can be used to effectively access I/O devices. Give proper diagram and
explanation of working.
(answer for 10 marks.)
Alight ray is incident from glass to air. If the transmitted power is 0 dB,
compute the reflected power.
This computer organization would not require registers to execute its instructions , elaborate properly with an example and diagram on how this mechanism works.
Give any 5 addressing modes which do not use the address given inside the instruction to fetch the given operand directly, instead they use one form or another for it.
Explain the process followed by CPU while completing the interrupts and resuming to instructions with proper steps.
