10.

13:

12.

13.

14.

15

16.

Which among the following will not affect the de performance of the op-amp ?
(|) common mode rejection ratio (B) bandwidth
(C) slew rate (D) input resistance

Communication systems that do not use madulation are called :
(A} carrier communications (8) base band communications
(C) terrestrial communications (D) powerline communications

Which among the following can be taken as a constant envelope modulation ?
(ಸಿ) DSBFCAM ‏رف‎ DSBSCAM (©) 8 (D) FM

Choose the correct statement, regarding the measurement of a sinusoidal voltage
waveform :

(A) using CRO the RM.S. value can be measured.
(ए) വണ CRO the RM.S. value and using multimeter the average value can be measured.

(9 ഞ്ജ CRO the average value and using multimeter the maximum value can फिट
measured,

(0) using CRO the peak voltage and using multimeter the RM.S. value can be measured,

A series RL circuit takes 160 watts of energy at 0.8 power factor lagging from 100 V, 50 Hz
supply. The value of R is :
(A) 6250 (ए) 300 ‏تا‎ 400 (D) 500

Magnitude of Electric Field Intensity in the depletion region of an open circuited
PN junction is :

(A) uniformly distributed

(B) maximum at the junction

(C) maximum at the region near P side

(12) maximum at the region near N side

Drift current in the semiconductor depends upon :
(A) only the electric field

(B) only the carrier concentration

(€) both the electric field and carrier concentration
{D) none of the above

A zener diode when used in voltage stabilization circuits is biased in :
(A) reverse bias region below the breakdown voltage

(8) reverse breakdown region

(C) forward bias region

(D) forward bias constant current mode

155/2014 4 A