11. The negative maximum of a cosine waveform occur at
a. 270 degree
b. 180 degree
c. 90 degree
d. 0 degree
12. The positive maximum of a sine occur at
a. 0 degree
b. 45 degree
c. 90 degree
d. 180 degree
13. For the same peak value of voltage , which waveform will have the least rms value?
a. Sine wave
b. Square wave
c. Triangular wave
d. Full wave rectified sine wave
14. For the same peak value of voltage , which wave will have highest rms value
a. Sine wave
b. Half wave rectified sine wave
c. square wave
d. Triangular wave
15. Which wave has the highest value of form factor?
a. Sine wave
b. Triangular wave
c. Square wave
d. Half wave rectified sine wave
16. Which wave has the least value of form factor?
a. Square wave
b. Rectangular wave
c. Triangular wave
d. Sine wave
17. Which of the following waves has form factor of 1.0
a. Sine wave
b. Triangular wave
c. Square wave
d. none of the above
18. Which of the following frequencies has the longest period?
a. 1 Hz
b. 10 Hz
c. 1 kHz
d. 10 kHz
19. RMS value and the mean value is the same in case of
a. Sine wave
b. Half wave rectified sine wave
c. Square wave
d. Triangular wave
20. For a wave form more peaky then a sine wave , the form factor will be
a. more then 1.11
b. 1.11
c. 1.10
d. less then 1.11
