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Solution for BARC Live Quiz Session(@ 7th March)
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Question 1
In the network shown below C1 was charged to 10 V and C2 was uncharged initially. At t = 0 switch was closed
The current I(t) flowing through 1 Ω resistor is
The current I(t) flowing through 1 Ω resistor is
Question 2
A slab of dielectric material has an electric field intensity of 589 V/m. If the relative dielectric constant is 4.6, determine the electric flux density of the material.(nano Coulomb/meter square)
Question 3
According to the time-scaling property of Fourier transform, f 
, then 
. This property signifies that if the duration of the signal is expanded in the time domain, then in the frequency domain:
, then . This property signifies that if the duration of the signal is expanded in the time domain, then in the frequency domain: Question 4
Let s be a portion of a plane and 
be a normal to the said plane. Suppose that the boundary of s is a circle c and the surface area of s is 1. Then the absolute value of line integral
is ______.
be a normal to the said plane. Suppose that the boundary of s is a circle c and the surface area of s is 1. Then the absolute value of line integralis ______.Question 5
Two two-port networks with h-parameters 
and 
are connected such that the overall h-parameters is given as:
Determine the type of connection.
and are connected such that the overall h-parameters is given as: Determine the type of connection.
Question 6
For the given fixed bias configuration, determine the resistance RB, if the output voltage VC is 9V
Question 7
Find the transfer function of a linear time-invariant system which is initially at rest when subjected to unit step input gave the response c (t) = t.
(t
)?
Question 8
Gate trigger voltage and current of a thyrsitor are 1.6V and 100mA. A 10Ω resistance is connected across the gate-cathode terminals. The trigger supply voltage is 10V. Then, find the series resistance required to be connected with gate to ensure turn on of the device.
Question 9
A synchronous generator has synchronous reactance of 1.2 pu. It is connected to an infinite bus of voltage 1 pu, equivalent reactance of 0.5 pu. If the maximum output is 2 pu, the load angle for an output of 1.2 pu is ________ degrees.
Question 10
A 500MVA, 50Hz, 2-pole alternator is operating at 0.9 power factor lagging. If a fault occurs and the power drops to 40%. Then, find the accelerating torque of the alternator.
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ESE & GATE EEGeneralJul 12ESE & GATE EE
