Instrumentation Engineering
2018 · Paper 1
Take it one question at a time. Try an answer, then check your understanding.
Complete GATE IN 2018 Paper 1 overview, original pages and practice · Timed previous-paper practice
Questions 52–54 of 65. Imported answers require review unless explicitly marked reviewed.
Question 42
Open questionINNAT2 marksNeeds review
The circuit given uses ideal opamps. The current I (in
A) drawn from the source
is (up to two decimal places) ____. 
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Open questionINMCQ2 marksNeeds review
The product of sum expression of a Boolean function
of three variables is given by
The canonical sum of product expression of
is given byYour answerChoose one option.
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You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 44
Open questionINMCQ2 marksNeeds review
A 2-bit synchronous counter using two J-K flip flops is shown. The expressions for the inputs to the J-K flip flops are also shown in the figure. The output sequence of the counter starting from
is 
Your answerChoose one option.
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