Q. Full wave rectifier with 50 Hz input frequency has output frequency_________
a. 100 Hz
b. 50 Hz.
c. 75 Hz
d. None of the above
Explanation
A full wave rectifier rectifies both cycles of the AC input i.e., it conducts two times during one cycle. The output frequency is Twice/double that of the input frequency. Therefore the output frequency is 2 x 50 = 100 Hz.
If you look at the figure above you will find that for half wave rectifier (the Right side of Image) the 1 cycle of the output wave completes in the same time as the input. So the output has the same frequency as the input for half wave rectifier.
Now in case of full wave rectifier (the left side of Image) the 1 cycle of the output completes in half the duration of input cycle, i.e. the output cycle repeat twice during the input cycle. It means that the Output frequency of a full wave rectifier is twice that of input frequency.
Some Important Electrical MCQs with full Explanation
If Voltage Standing Wave Ratio, (VSWR) of a wave is 2, its reflection coefficient will be?
The system 2d2y/dt2+4dy/dt+8y=8x, has damping ratio?
Full wave rectifier with 50 Hz input frequency has output frequency?
Vertical lines on the S-plane are the lines of constant ?
Other MCQs with full Explanation
Categories
- Control System (3)
- Research Work (2)
- Courses (5)
- Extra High Voltage EHV Substation Design (4)
- Fellowships (2)
- Information for Engineers (2)
- Interview Preparation (2)
- Jobs (10)
- Electrical Jobs (8)
- Jobs in KSA (9)
- L&T (1)
- MATLAB and Simulink (1)
- MCQs (12)
- Electrical MCQs (11)
- Electronics MCQs (9)
- Microsoft Excel (1)
- Past Papers (5)
- electrical (5)
- Saudi Electricity Company (2)
- Scholarships (4)
- Scholarships in Pakistan (1)
- Tendering (1)
- Transmission lines design (4)
- Uncategorized (18)
- Web Development (1)