GATE (Graduate Aptitude Test in Engineering) Electrical Engineering: Questions 139 - 143 of 148

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Question 139

Appeared in Year: 2019

Write in Short

Short Answer▾

The magnetic circuit shown below has uniform cross-sectional area and air gap of 0.2 cm. The mean path length of the core is 40 cm. Assume that leakage and fringing fluxes are negligible. When the core relative permeability is assumed to be infinite, the magnetic flux density computed in the air gap is 1 tesla. With same Ampere-turns, if the core relative permeability is assumed to be 1000 (linear) , the flux density in tesla (round off to three decimal places) calculated in the air gap is ________.

Calculation of Reluctance

Question 140

Appeared in Year: 2013

Question

MCQ▾

Evaluated anticlockwise around the circle , where , is

Choices

Choice (4)Response

a.

0

b.

c.

d.

Passage

The transfer function of a compensator is given as

Question 141 (1 of 2 Based on Passage)

Appeared in Year: 2012

Question

MCQ▾

The phase of the above lead compensator is maximum at

Choices

Choice (4)Response

a.

b.

c.

d.

Question 142 (2 of 2 Based on Passage)

Appeared in Year: 2012

Question

MCQ▾

is a lead compensator if

Choices

Choice (4)Response

a.

b.

c.

d.

Question 143

Appeared in Year: 2019

Question

MCQ▾

A periodic function , with a period of , is represented as its Fourier series,

If

The Fourier series coefficients and of are

Choices

Choice (4)Response

a.

b.

c.

d.

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