For a frequency of 200 Hz, the time period will be__________?

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 reactance offered by a capacitor to alternating current of frequency 50 Hz is 20 Q. If frequency is increased to 100 Hz, reactance becomes_______ohms?

   A. 2.5
   B. 5
   C. 10
   D. 15

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

   A. 20 Hz
   B. 30 Hz
   C. 40 Hz
   D. 50 Hz

4. 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

5. 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

6. 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

7. In a pure capacitive circuit if the supply frequency is reduced to 1/2, the current will__________?

   A. be reduced by half
   B. be doubled
   C. be four times at high
   D. be reduced to one fourth

8. What will be the phase angle between two alternating waves of equal frequency, when one wave attains maximum value the other is at zero value________ ?

   A. 0°
   B. 45°
   C. 90°
   D. 180°

9. In R-L-C series resonant circuit magnitude of resonance frequency can be changed by changing the value of__________?

   A. R only
   B. L only
   C. C only
   D. LorC
   E. R,LorC

10. In a series L-C circuit at the resonant frequency the__________?

    A. current is maximum
    B. current is minimum
    C. impedance is maximum
    D. voltage across C is minimum