The general solution of the differential equation (D2– 4D+ 4)y = 0 is of form
The box 1 contains chips numbered 3, 6, 9, 12 and 15.The box 2 contain chips numbered 6, 11, 16, 21 and 26. Two chips, one frame each box are drawn at random.The numbers written on these chips are multiplied.The probability for the product to be an even number is
The equation x3– x2+ 4x – 4 = 0 is to be solved using Newton-Raphson method. If x= 2 taken as the initial approximation of the solution, then the next approximate using this method, will be
For the network shown in figure, the value of voltage gain with CE and without CE respectively are
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Solution
The value of integral \(\int_{0}^{1+i}\)(x – 4 + ix2)dz along the straight line from z =0 to z= 1+ i is
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Solution
A 3-phase slip-ring induction motor is wound for 4-poles on stator and 6-poles an rotor. When 3-phase balanced voltage source at 50 Hz is applied to the motor,it will run at
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Solution
A 3-phae slip ring induction motor is wound for 4-poles on stator and 6-poles on rotor.
For slip ring induction motor, the number of stator poles must be equal to number of rotor poles, otherwise motor will not run.
For squirrel cage induction motor, the rotor adjust its elf to the number of stator poles.
The transfer functions of the system is given by H(S) = \(\frac{1}{s^{2}(s-2)}\).The impulse response of the system is
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Solution
The two electrical sub networks N1 and N2 are connected through three resistors as shown in the figure. The voltage across 5 Ω resistor and 1 Ω resistor are given to be 10V and 5 V respectively.Then, voltage across 15 Ω resistor is
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Solution
V5Ω= 10V
V1Ω= 5V
An open loop transfer function of an unity feedback control system has two finite zeros, two poles at origin and two pairs of complex conjugate poles, the slope of high frequency asymptote is bode magnitude plot will be
A linear second order system with the transfer function G(s)= \(=\frac{49}{s^{2}+16s+49}\)is initially at rest and is subjected to a step input signal. The response of the system will exhibit a peak over shoot of