GATE-2012 ECE Q10 (networks)

Question 10 on networks from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q10. The average power delivered to an impedance  by a current  is (A) 44.2W (B) 50W (C) 62.5W [...]

Read Full Article →

GATE-2012 ECE Q18 (signals)

Question 18 on signals from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q18. If , then the region of convergence (ROC) of its Z transform  in the z-plane will be (A)  [...]

Read Full Article →

Migrated to Amazon EC2 instance (from shared hosting)

Being not too happy with the speed of the shared hosting, decided to move the blog to an Amazon Elastic Compute Cloud (Amazon EC2) instance.  Given this is a baby step, picked up a micro instance [...]

Read Full Article →

GATE-2012 ECE Q28 (electromagnetics)

quarter_wave_matching_transformer

Question 28 on electromagnetics from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q28. A transmission line with a characteristic impedance of 100 is used to match a 50 section to a 200 section. If the matching [...]

Read Full Article →

Image Rejection Ratio (IMRR) with transmit IQ gain/phase imbalance

iq_modulator_with_gain_phase_imbalance

The post on IQ imbalance in transmitter, briefly discussed the effect of amplitude and phase imbalance and also showed that IQ imbalance results in spectrum at the image frequency. In this article, we will quantify [...]

Read Full Article →

GATE-2012 ECE Q15 (communication)

entropy_versus_probability

Question 15 on communication from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q15. A source alphabet consists of N symbols with the probability of the first two symbols being the [...]

Read Full Article →

GATE-2012 ECE Q7 (digital)

Question 7 on digital from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q7. The output Y of a 2-bit comparator is logic 1 whenever the 2 bit input A is [...]

Read Full Article →

GATE-2012 ECE Q13 (circuits)

voltage_clamper_peak_detector_circuit

Question 13 on analog electronics from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q13. The diodes and the capacitors in the circuit shown are ideal. The voltage  across the diode  is (A)  [...]

Read Full Article →

GATE-2012 ECE Q34 (signals)

Question 34 on signals from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q34. Consider the differential equation  with  and  The numerical value of  is (A) -2 (B) -1 (C) 0 (D) [...]

Read Full Article →

GATE-2012 ECE Q12 (math)

Question 12 on math from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q12. With initial condition  the solution of the differential equation,  is (A) (B) (C) (D) Solution From the product [...]

Read Full Article →

GATE-2012 ECE Q11 (signals)

Question 11 on signals from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q11. The unilateral Laplace transform of is . The unilateral Laplace transform ofis (A)  (B)  (C)  (D)  Solution From [...]

Read Full Article →

GATE-2012 ECE Q2 (communication)

power_spectral_density

Question 52 on communication from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q2. The power spectral density of a real process for positive frequencies is shown below. The values of  and , [...]

Read Full Article →

GATE-2012 ECE Q52 (electromagnetics)

Question 52 on electromagnetics from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. An infinitely long uniform solid wire of radius  carries a uniform dc current of density . Q52. The magnetic [...]

Read Full Article →

GATE-2012 ECE Q16 (electromagnetics)

coaxial_cable_electric_field

Question 16 on electromagnetics from GATE (Graduate Aptitude Test in Engineering) 2012 Electronics and Communication Engineering paper. Q16. A coaxial cable with an inner diameter of 1mm and outer diameter of 2.4mm is filled with [...]

Read Full Article →

← Previous Entries