1
GATE EE 2003
MCQ (Single Correct Answer)
+2
-0.6
Figure shows an ideal single-phase transformer. The primary and secondary
coils are wound on the core as shown. Turns ratio $$\left(\frac{N_1}{N_2}\right)$$=2.
The correct phasors
of voltages $$E_1,\;E_2$$ currents $$I_1,\;I_2$$ and core flux $$\phi$$ are as shown in
A
B
C
D
2
GATE EE 2002
MCQ (Single Correct Answer)
+2
-0.6
A 400V/200V/200V, 50 Hz three winding transformer is connected as shown in Figure. The reading of the voltmeter 'V' will be
3
GATE EE 2001
MCQ (Single Correct Answer)
+2
-0.6
The hysteresis loop of a magnetic material has an area of 5 cm2 with the scales
given as 1 cm = 2 AT and 1 cm = 50 mWb. At 50 Hz, the total hysteresis loss is
4
GATE EE 2001
MCQ (Single Correct Answer)
+2
-0.6
A 3-phase transformer has rating of 20 MVA, 220 kV (star) / 33 kV (delta) with
leakage reactance of 12%. The transformer reactance (in ohms) referred to each
phase of the L.V. delta-connected side is
Questions Asked from Transformers (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE EE 2023 (1)
GATE EE 2018 (2)
GATE EE 2017 Set 2 (1)
GATE EE 2017 Set 1 (1)
GATE EE 2016 Set 2 (2)
GATE EE 2016 Set 1 (3)
GATE EE 2015 Set 1 (2)
GATE EE 2015 Set 2 (3)
GATE EE 2014 Set 2 (1)
GATE EE 2014 Set 3 (4)
GATE EE 2014 Set 1 (1)
GATE EE 2013 (1)
GATE EE 2012 (1)
GATE EE 2010 (1)
GATE EE 2009 (6)
GATE EE 2008 (2)
GATE EE 2007 (1)
GATE EE 2006 (3)
GATE EE 2004 (3)
GATE EE 2003 (3)
GATE EE 2002 (1)
GATE EE 2001 (2)
GATE EE 2000 (1)
GATE EE 1999 (5)
GATE EE 1998 (1)
GATE EE 1997 (2)
GATE EE 1993 (1)
GATE EE Subjects
Electromagnetic Fields
Signals and Systems
Engineering Mathematics
General Aptitude
Power Electronics
Power System Analysis
Analog Electronics
Control Systems
Digital Electronics
Electrical Machines
Electric Circuits