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GATE EE: 2018 Mini Mock 4
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Question 1
L1 = 17mH and C = 50pF is define for Hartley oscillator what will be the value of L2 for frequency 168KHz. If the mutual inductance between 
and 
is 7μH
and is 7μH Question 2
The following arrangement of master- slave flip-flop
has the initial state of P, Q as 0, 1 respectively. After three clock cycles the output states P, Q is respectively
has the initial state of P, Q as 0, 1 respectively. After three clock cycles the output states P, Q is respectively
Question 3
A transmission line having a reactance of 3 pu is operating at Vs = Vr =3 pu. The generator is connected at source end which is delivering 2 pu of active power. Find the load angle?
Question 4
The open loop transfer function of the system is G(s) H(s) = 
. The root locus will intersect j
axis at A, the asymptotic line intersect j
at point B
The values are
. The root locus will intersect j axis at A, the asymptotic line intersect j at point B The values are
Question 5
A capacitor C is charged through a resistance R from a D.C. voltage. If C = 10 mF and R = 1 KΩ, find the time taken (in sec) by the capacitor to receive 90% of its final charge.
Question 6
A 230V, 15 kW ,1000rpm shunt motor with armature resistance of 0.50 Ω, has a rated line current of 72 A and a rated field current of 2.2 A. The change in field flux required to obtain a speed of 1800 rpm while drawing a line current of 54.6 A and a field current of 1.8 A is
Question 7
A charged particle of mass 2Kg and charge 3C starts at point (1 , -2 , 0) , in an electric field 12
+ 10
at time t=1 sec . What will be the acceleration of particle.
+ 10 at time t=1 sec . What will be the acceleration of particle. Question 8
A moving coil voltmeter has a range of 0 – 10 V. In order to extend the range of the voltmeter to 0 – 50 V, a multiplier resistance must be added in series with the coil. The multiplier resistance should be:
Question 9
A sinusoidal voltage of 100 Vrms is applied to a half-wave rectifier shown below. Two dc voltmeters are connected to measure the input and the output dc voltages. Determine the reading of the voltmeters.
Question 10
A single phase transformer with secondary voltage of 230V, 50Hz delivers power to load R= 10Ω through a half wave controlled rectifier circuit. For a firing angle delay of 60 ° Rectification efficiency of the rectifier is –
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