GATE EE 2018 Paper 1 — page 19

Questions 55–57 of 65. Imported answers require review unless explicitly marked reviewed.

The capacitance of an air-filled parallel-plate capacitor is 60 pF. When a dielectric slab whose thickness is half the distance between the plates, is placed on one of the plates covering it entirely, the capacitance becomes 86 pF. Neglecting the fringing effects, the relative permittivity of the dielectric is __________ (up to 2 decimal places).

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The unit step response

of a unity feedback system with open loop transfer function

is shown in the figure. The value of

is ______ (up to 2 decimal places).

Diagram for Electrical Engineering question 46

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A three-phase load is connected to a three-phase balanced supply as shown in the figure. If

and

(angles are considered positive in the anti-clockwise direction), the value of

for zero current in the neutral wire is __________

(up to 2 decimal places).

Diagram for Electrical Engineering question 47

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2018 · Paper 1

Question 45

Question 46

Question 47