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MICROWAVES AND RADARS
A radar system uses TWTA as high power RF source for transmitting $300\text{Watts}$ peak power. The efficiency of transmitter during pulse is $75\%$ and the transmit duty is $25\%$. If the DC power required during pulse off period is $20Watts$. The average power dissipation in TWTA is
A radar system uses TWTA as high power RF source for transmitting $300\text{Watts}$ peak power. The efficiency of transmitter during pulse is $75\%$ and the transmit duty...
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2
ISRO 2017-ECE Number system
The Gray code for ($A5$) $16$ is equivalent to $10010101$ $11010101$ $11011111$ $11011011$
The Gray code for ($A5$) $16$ is equivalent to$10010101$$11010101$$11011111$$11011011$
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ISRO 2017-ECE Digital logic
Consider following 8085 microprocessor program MVI A, DATA1 ORA A JM DISPLAY OUT PORT1 CMA DISPLAY : ADI 01H OT PORT1 HLT If DATA1 = A7H, the output at PORT1 is (a) A7H (b) 58H (c) 00H (d) 59H
Consider following 8085 microprocessor programMVIA, DATA1ORA AJM DISPLAYOUT PORT1CMADISPLAY :ADI 01HOT PORT1HLTIf DATA1 = A7H, the output at PORT1 is(a) A7H(b) 58H(c) 00H...
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4
ISRO 2017-ECE Digital Logic
Which of the following statement is true for Programmable Logic array (PLA)? (a) Fixed AND array and Fused programmable OR array (b) Fused programmable AND array and Fixed OR array (c) Fused programmable AND array and Fused programmable OR array (d) None of the above
Which of the following statement is true for Programmable Logic array (PLA)?(a) Fixed AND array and Fused programmable OR array(b) Fused programmable AND array and Fixed ...
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5
ISRO 2017-ECE Minterms
Simplify the below function represented in sum of minterms
Simplify the below function represented in sum of minterms
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6
ISRO 2017-ECE T- Flip flops
If input to T flip flop is 200 Hz signal, then what will be the output signal frequency if four T flip flops are connected in cascade (a) 200 Hz (b) 50 Hz (c) 800 Hz (d) None of the above
If input to T flip flop is 200 Hz signal, then what will be the output signal frequency if four T flip flops are connected in cascade(a) 200 Hz(b) 50 Hz(c) 800 Hz(d) None...
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7
ISRO 2017-ECE Computational circuits
The circuit shown in the figure converts (a) BCD to binary code (b) Binary to Excess-3 code (c) Excess-3 to Gray code (d) Gray to Binary code
The circuit shown in the figure converts(a) BCD to binary code(b) Binary to Excess-3 code(c) Excess-3 to Gray code(d) Gray to Binary code
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