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CBSE-NET 2017 EC Exam: Practice Quiz 5
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Question 1
CB configuration with Ie=4mA, α=0.98, and an ac of 2mV applied between the base and emitter. Calculate Av & Ai if a load of 0.56kΩ is connected to the output terminals,
Question 2
When a transistor amplifier is operating, the current in any branch is………..
Question 3
A coil has 200 turns and area of 70 cm2. The magnetic field perpendicular to the plane of the coil is 0.3 Wb/m2 and takes 0.1 sec to rotate through 180°. The magnitude of induced e.m.f. is____.
Question 4
The number of turns in a secondary coil is twice the number of turns in the primary. A cell of 1.5 V ¡s connected across the primary. The voltage across the secondary is
Question 5
At 80o, phase R is 
and phase Y is 
The voltage of phase B is
and phase Y is The voltage of phase B is Question 6
A low lagging power factor results in
Question 7
One of the following methods can be used to determine the relative stability of a Control Systems
Question 8
Stability of a Control Systems can be determined from one of the following responses
Question 9
There is a function f(x), such that f(0) = 1 and f’ (0)= -1 and f(x) is positive for all values of x. Then,
Question 10
The value of x at which y has a minimum for y = 
Is
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ESE & GATE ECGeneralAug 27ESE & GATE EC
