Electronics and Communication Engineering - Networks Analysis and Synthesis

1.
In the circuit shown in the given figure, switch k is closed at t = 0. The circuit was initially relaxed then which one of the following sources of v(t) will produce maximum current at t = 0+?
Unit step
Unit impulse
Unit ramp
Unit step plus unit ramp
Answer: Option
Explanation:
No answer description is available. Let's discuss.

2.
Pick the correct statement
Delta connection draws same current as star connection
Delta connection draws 3 times as much current as star connection
Delta connection draws of the current of star connection
Delta connection draws of the current of delta connection
Answer: Option
Explanation:
No answer description is available. Let's discuss.

3.
The inverse Fourier transform of is
sin ωt
cos ωt
sgn (t)
u (t)
Answer: Option
Explanation:
No answer description is available. Let's discuss.

4.
The colour on the extreme left in general purpose fixed resistors represents
first significant digit
tolerance
wattage rating
voltage rating
Answer: Option
Explanation:
No answer description is available. Let's discuss.

5.
When a current flows through a conductor,
an electric field exists at all points within the conductor
electric field exists only at all points on the surface of the conductor
electric field exists only at ends of the conductor
any of the above depending on magnitude of current
Answer: Option
Explanation:
No answer description is available. Let's discuss.