GATE EE 2025 Paper 1 — page 17

Questions 49–51 of 65. Imported answers require review unless explicitly marked reviewed.

In the system shown below, the generator was initially supplying power to the grid. A temporary LLLG bolted fault occurs at F very close to circuit breaker 1. The circuit breakers open to isolate the line. The fault self-clears. The circuit breakers reclose and restore the line. Which one of the following diagrams best indicates the rotor accelerating and decelerating areas?

Diagram for Electrical Engineering question 49

Your answerChoose one option.

Fig. (i)

Diagram for Electrical Engineering question 49 (figure 2)

Fig. (ii)

Diagram for Electrical Engineering question 49 (figure 3)

Fig. (iii)

Diagram for Electrical Engineering question 49 (figure 4)

Fig. (iv)

Diagram for Electrical Engineering question 49 (figure 5)

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An air filled cylindrical capacitor (capacitance

) of length L, with a and b as its inner and outer radii, respectively, consists of two coaxial conducting surfaces. Its cross-section view is shown in Fig. (i). In order to increase the capacitance, a dielectric material of relative permittivity

is inserted inside 50% of the annular region as shown in Fig. (ii). The value of

for which the capacitance of the capacitor in Fig. (ii), becomes

Diagram for Electrical Engineering question 50

Your answerChoose one option.

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Let

be the unit radial vector in the spherical co-ordinate system. For which of the following value(s) of n, the divergence of the radial vector field

is independent of R?

Your answerSelect all correct options. You can choose more than one.

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2025 · Paper 1

Question 49

Question 50

Question 51