1. When compared to a first-order low-pass filter, a second order low-pass filter has
A. lower voltage gain
B. higher voltage gain
C. faster drop in filter response
D. higher cut-off frequency.
2. Three concentric conducting spherical surfaces of radii R1, R2 and R3 (R1< R2< R3) carry charges of -1, -2 and 4 coulombs respectively. The charges on the inner and outer surfaces of the outermost sphere will be respectively (in coulombs).
A. 0, 4
B. 3, 1
C. -3, 7
D. -2, 6
3. In a power MOSFET switching times are of the order of few
A. seconds
B. milliseconds
C. microseconds
D. nano seconds.
1. Match List-I with List-II and select the correct answer using the codes given below the lists:
List-I List-II
(Pole-zero configurations) (Number of elements in Foster's first form
network)
A. 1. Two
B. 2. Three
C. 3. Four
D. 4. Five
Codes:
A B C D
A. 3 2 1 4
B. 4 3 1 2
C. 3 4 2 1
D. 2 1 4 3
2. An electric dipole of moment P is placed in front of a grounded sphere as shown in the fig. The charge induced on the surface of the sphere is :
1. In the circuit shown in the figure given below, RC is very small and L / R is very large when compared to the time period of the various input signals. Also R << R3
The output V0(t) is given by
2. Transmission of power to a load over a transmission line achieves optimum value when standing-wave ratio (SWR) becomes
A. 2 : 1
B. 1 : 2
C. 1 : 1
D. 1 :Ö2
PSU Sample Paper 4 – mcqs in electrical engineering, mcqs in electronics and comunication, power consumption, psu sample papers for cs, psu question papers
1. When four resistances of 2W 1W; 5W 2W; 10W 5W and 15W 10 W are connected in parallel, the greatest power is absorbed by
2 W, 1 W
5 W, 2 W
10 W, 5W
15 W, 10 W
2. A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying a current of 50 mA. To measure current upto 100 A, we will have to connect
10 W resistance in series
10 W resistance in parallel
10/1999 W resistance in series
10/1999 W resistance in parallel
3. The ripple voltage in the output of a single phase half wave rectifier with 10 V rectified dc voltage with resistive load and without filter will be
1.When four resistances of 2W 1W; 5W 2W; 10W 5W and 15W 10 W are connected in parallel, the greatest power is absorbed by
2 W, 1 W
5 W, 2 W
10 W, 5W
15 W, 10 W
2. A moving coil instrument has a resistance of 10 W and gives full scale deflection when carrying a current of 50 mA. To measure current upto 100 A, we will have to connect
1. Two
2. Three
3. Four
4. Five
