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ISRO EC Exam 2017: Practice Quiz 5
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Question 1
Let s(t) denote the delta function. The value of the integral 
is
is Question 2
Determine the DTFT of the sequence 
is unit step sequence
is unit step sequence Question 3
A signal 
where f = 1 MHz is sampled at 3 MHz and Fourier Transform is carried out. How many lines will be seen in Fourier Transform?
where f = 1 MHz is sampled at 3 MHz and Fourier Transform is carried out. How many lines will be seen in Fourier Transform? Question 4
Equivalent Resistance between X and Y is
Question 5
In a Series resonant circuit, with the increase in L
Question 6
On an induction type energy meter, is written “600 rev/kWh”. If it is to be used an approximate wattmeter which is read off in rpm, a 600 watt load would read as
Question 7
Eigen values of 
are
are Question 8
A cylindrical block of a certain material has a resistance R as measured between its circular faces. To halve the resistance, all the dimensions of the block must be
Question 9
The boundary condition for electrostatic field at an interface between a conductor and a dielectric with permittivity ε is
[Note :
and 
are tangential and normal components of electric field at the interface]
[Note :
and are tangential and normal components of electric field at the interface] Question 10
Suppose the functions F and G can be computed in 5 and 3 nanoseconds by functional units 
and 
respectively. Given two instances of 
and two instances of 
it is required to implement the computation 
for 
Ignoring all other delays, the minimum time required to complete this computation is ____ nanoseconds.
and respectively. Given two instances of and two instances of it is required to implement the computation for Ignoring all other delays, the minimum time required to complete this computation is ____ nanoseconds. - 615 attempts
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