The period of a sine wave is _____ seconds. Its frequency is

Related Mcqs:

1. A sine wave has a frequency of 50 Hz. Its angular frequency is ________ radian/second.

   A. 100 n
   B. 50 jt
   C. 25 JT
   D. 5 n

2. The r.m.s. value of half wave rectified sine wave is 200 V. The r.m.s. value of full wave rectified AC. will be___________?

   A. 282.8 V
   B. 141.4 V
   C. 111 V
   D. 100 V

3. The peak value of a sine wave is 200 V. Its average value is___________?

   A. 127.4 V
   B. 141.4 V
   C. 282.8 V
   D. 200V

   Updated by: Ihtisham Ul Haq

4. Form factor for a sine wave is________?

   A. 1.414
   B. 0.707
   C. 1.11
   D. 0.637

5. For a sine wave with peak value Imax the r.m.s. value is_______?

   A. 0.5 Imax
   B. 0.707
   C. 0.9
   D. 1.414 Lmax

6. For a sine wave with peak value Emax _______ 8.30. the average value is?

   A. 0.636 Emax
   B. 0.707 Emax
   C. 0.434 EWc
   D. lAUEmax

7. The equation of 50 Hz current sine wave having r.m.s. value of 60 A is____________?

   A. 60 sin 25 t
   B. 60 sin 50 t
   C. 84.84 sin 3141
   D. 42.42 sin 314 t

8. In a sine wave the slope is constant_______?

   A. between 0° and 90°
   B. between 90° and 180°
   C. between 180° and 270°
   D. no where

9. If two sine waves of the same frequency have a phase difference of JT radians, then_______?

   A. both will reach their minimum values at the same instant
   B. both will reach their maximum values at the same instant
   C. when one wave reaches its maxi¬mum value, the other will reach its minimum value
   D. none of the above

10. If a sinusoidal wave has frequency of 50 Hz with 30 A r.m.s. current which of the following equation represents this wave_________ ?

    A. 42.42 sin 3141
    B. 60 sin 25 t
    C. 30 sin 50 t
    D. 84.84 sin 25 t