GATE EE 2011 Question Paper (13-Feb-2011) (Shift 2)

A voltage commutated chopper circuit, operated at 500 Hz is shown below. If the maximum value of load current is 10 A, then the maximum current through the main and auxiliary thyristor will be

Solution of the variables x₁ and x₂ for the following equations is to be obtained by employing the Newton Raphson iterative method.

equation (i) 10x₂ sin x₁ - 0.8 = 0

equation (ii) $10{\mathrm{x}}_2^2-10{\mathrm{x}}_2\cos {\mathrm{x}}_1-0.6=0$

Assuming the initial values x₁ = 0.0 and x₂ = 1.0, the Jacobian matrix is

The frequency response of a linear system G(jω) is provided in the tabular form belowThe gain margin and phase margin of the system are

A 3-phase. 6-pole, 50 Hz, squirrel cage induction motor is running at a slip of 5%. The speed of stator magnetic field to rotor magnetic field and speed of rotor with respect to stator magnetic field are

A capacitor is made with a polymeric dielectric having εᵣ of 2.26 and a dielectric breakdown strength of 50 kV / cm. The permittivity of free space is 8.85 pF / m. If the rectangular plates of the capacitor have a width of 20 cm and a length of 40 cm, the maximum electric charge in the capacitor is