A periodic voltage has following value for equal time intervals changing suddenl

CuriousTab

CuriousTab

Home Aptitude

Discussion

Home ‣ Electronics and Communication Engineering ‣ Electronic Devices and Circuits See What Others Are Saying!

Question
A periodic voltage has following value for equal time intervals changing suddenly from one value to next... 0, 5, 10, 20, 50, 60, 50, 20, 10, 5, 0, -5, -10 etc. Then rms value of the waveform is
Options
A. 31 V
B. 32 V
C. insufficient data
D. none of these

Correct Answer

31 V

Explanation

A periodic voltage has following value for equal time intervals changing suddenly from one value to

RMS value = 965 = 31.064 Volt.

More questions

4. As compared to an ordinary semiconductor diode, a Schottky diode
Options
A. has higher reverse saturation current
B. has higher reverse saturation current and higher cut in voltage
C. has higher reverse saturation current and lower cut in voltage
D. has lower reverse saturation current and lower cut in voltage

6. The total field developed by an antenna array at a distant point is
Options
A. phasor sum of fields produced by individual antennas of the array
B. algebraic sum of fields produced by individual antennas of the array
C. either (a) or (b) depending on type of array
D. neither (a) nor (b)

7. A standard cell of 1.0185 V is used with a slide wire potentiometer. The balance was obtained at 60 cm. When an unknown emf was connected, the balance was obtained at 82 cm. The magnitude of unknown emf is
Options
A. 1.39 V
B. 0.75 V
C. 13.9 V
D. 7.45 V

8. The number of valence electrons in donor impurity are
Options
A. 5
B. 4
C. 3
D. 1

9. Assertion (A): A DIAC has four layers but only two terminals.
Reason (R): A DIAC can conduct in both directions.
Options
A. Both A and R are correct and R is correct explanation of A
B. Both A and R correct but R is not correct explanation of A
C. A is correct but R is wrong
D. A is wrong but R is correct

Comments

There are no comments.

More in Electronics and Communication Engineering: