1. An ideal constant current source is connected in series with an ideal constant voltage source. Considering together the combination will be a ?

a) constant voltage source

b) constant current source

c) constant voltage and a constant current source or a constant power source

d) resistance

2. When a dominant mode wave guide not terminated in it?s characteristic impedance is excited with a 10 GHz signal then if ?d? is the distance between two successive minima of the standing wave in the guide then

a) d = 1.5 cm             b) d is less then 1.5 cm                 c) d is greater than 1.5 cm                  d) d = 3cm 

3. A UJT can ?

a) be triggered by any one of it's three terminals

b) not be triggered

c) be triggered by two of its three terminal only

d) be triggered by all of its terminals only

4. For a parallel plate capacitor which is being charged out of the following the incorrect statement is ?

a) Energy stored in the capacitor does not enter it through the connecting wire through the space around the wires and plates of capacitor.

b) Rate at which energy flows into this volume is equal to the integration of the poynting vector over the boundary of the   volume between the plates.

c) The poynting vector points everywhere radially outward of the volume between plates.

d) The poynting vector points everywhere radially into the volume between the plates.

5. If an isolated conducting sphere in air has radius = 1/ 4pqe0 it capacitance will be

a) Zero               b) IF              c) 4pF                  d) OF

6. In case a signal band limited to fm is sampled at a rate less than 2fm, the constructed signal will be

a) Distortionless             b) Small in amplitude                c) Having higher frequencies suppressed                 d) Distorted

7. Read the following;

i. Routh Hermitz`s criterion is in time domain.

ii. Root locus plot is in time domain.

iii. Bode plot is in frequency domain.

iv. Nyquist criterion is in frequency domain.

a) 2, 3, and 4 are correct               b) 1, 2 and 3 are correct             c) 3 and 4 are correct              d) All four are correct

8. In composite video waveform the function of the serrations, is to

a) equalize the charge in the integrator before the start of vertical retrace.

b) help vertical synchronization

c) help horizontal synchronization.

d) simplify the generation of the vertical sync pulse

9. The degree of coupling depends on ?

a) size of hole

b) location of holes

c) size and location of holes

d) not depend on size or location of hole

10. With the beginnings of space travel, we entered a new - -

a) Era of great history            b) List            c) Book            d) Year

11. The coefficient of coupling between two air core coils depends on ?

a) mutual inductance between two coils only

b) self inductances of the two coils only

c) mutual inductance and self inductances of the two coils

d) none

12. While transporting a sensitive galvanometer ?

a) the terminals are kept shorted

b) critical damping resistance is connected across the terminals

c) the terminals are kept open circuited

d) it does not matter as to what is connected across the terminals

13. As a network contains only independent current sources and resistors then if the values of all resistors are doubled then the values of the node voltages are ?

a) will become half

b) will remain uncha

c) will become double

d) cannot be determined unless the circuit configuration and the values of the resistors are known

14. Poynting vector wattmeter uses ?

a) Seebeck effect               b) Ferranti effect                 c) Induction effect                  d) Hall effect

15. Register and counters are similar in the sense that they both ?

a) count pulses

b) store binary operation

c) shift registers

d) made from an array of flip flops and gates integrated on a single chip