ISRO Scientist or Engineer Electronics 2010

Instructions

For the following questions answer them individually

Question 11

When compared with stripline, the major disadvantage of microstrip line is

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Question 12

The disadvantage of single-stub matching as compared to double-stub matching,is that

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Question 13

A charge $$Q_{2} = 8.854 \times 10^{-9}$$ C is located in a vaccum at $$P_{2}(2, 3, 1)$$.The force on $$Q_{2}$$ due to a charge $$Q_{1} = 4 \pi \times 10^{-3}$$ C at $$P_{1}(2, 2, 1)$$ is

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Question 14

If a material contains $$10^{20}$$ molecules/m$$^3$$, each molecule having a moment of $$8.854 \times 10^{-27}$$ C-m parallel to an electric field of $$10^{5}$$ V/m, then its dielectric constantis

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Question 15

If every minor of order โ€˜rโ€™ of a matrix โ€˜Aโ€™ is zero, then rank of โ€˜Aโ€™is

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Question 16

Which of the following is true

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Question 17

What is the maximum clock frequency at which following circuit can be operated | without timing violations? Assume that the Combinational logic delay is 10 ns and the clock duty cycle varies from 40% to 60 %.

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Question 18

Following shift register is initially loaded with the bit pattern โ€œ1010โ€. After how many clock cycles will the content of shift register be โ€œ1010โ€ again?

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Question 19

Which oneofthe followingis the lowest level of abstraction for representation of a digital system?

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Question 20

The content of the accumulator of 8085 microprocessor after execution of the following instructions will be
MVI A, A7h
ORA A
RLC

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