If an AC voltage of 100V peak value is applied as input to a half wave rectifier and then a full wave rectifier, the rms values of outputs will be respectively:
Correct answer: C. 50V and 70V
- A. 35V and 35V
- B. 35V and 70V
- C. 50V and 70V
- D. 70V and 140V
Explanation
The RMS value for a half-wave rectifier is calculated as Vrms = Vpeak/2. Given a peak voltage (Vpeak) of 100V, the half-wave rectifier output is Vrms = 100V/2 = 50V.For a full-wave rectifier, the RMS value is calculated as Vrms = Vpeak/√2. Therefore, the full-wave rectifier output is Vrms = 100V/√2 ≈ 70.7V, which rounds to 70V for simplicity.Therefore, the correct RMS outputs for the half-wave and full-wave rectifiers are 50V and 70V respectively. The other options do not apply the correct RMS formulas for rectifiers.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electronics
A p-n junction forms when p-type and n-type semiconductor regions meet, creating a depletion layer, barrier potential and rectifying action. The work covers forward and reverse bias, junction current, diode characteristics, and how a diode converts alternating current into pulsating direct current through half-wave and full-wave rectification.
Practise Electronics
660 free Electronics MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electronics questions
If AC voltage of 60Hz is applied as input to a full wave rectifier, the frequency of output voltage (ripple) will be:
A series combination of a 100Ω resistor and an ordinary silicon diode is connected to a 10V battery. The current flowing through the circuit will be:
For the input signal shown, the output signal at the resistor "R" will look be
What is the current flowing in R2 in the circuit shown in Fig.? Given: R1 = 500Ω and R2 = 1kΩ .
In a bridge full wave rectifier, the input sine wave is 250sin100πt.The output ripple frequency will be:
Fig. shows three circuits used to rectify an alternating current. A cathode ray oscilloscope (CRO) with fixed settings of time base and Y gain is connected in turn as shown and produces a different trace in each case. Which of set of diagrams shows these traces most accurately?