Trusted by millions of Kenyans
LoginRegister
Study resources on Kenyaplex

Get ready-made curriculum aligned revision materials

Exam papers, notes, holiday assignments and topical questions – all aligned to the Kenyan curriculum.

Browse exam papers
Or go directly to:
Class notes Holiday assignments Topical questions Other resources

Study the figure below and use it to answer questions that follow.

Study the figure below and use it to answer questions that follow.
pic27920191317.png
(i) Briefly explain how the circuit works to produce a rectified alternating current.
(ii) Draw on the diagram to show the position of the capacitor.
(iii) State the functions of the capacitor in the circuit.
(iv) Sketch the graph of the output as seen on a CRO screen.

Answers

sharon
i)- During the first half cycle D1 is forward biased while D2 is reverse biased.
- The path taken by current is D1, Y R Z.
- During the next half-cycle D2 is forward biased while D1 is reverse biased and the path of the current is Q D2 Y R Z.
- During both cycles, current flows through the resistor in the same direction.
ii).pic27920191319.png
(iii) Smoothen the output signal.
pic27920191321.png
sharon kalunda answered the question on September 27, 2019 at 10:21

Answer Attachments

Next: Define the term acceptor atoms as applied in semiconductor.

Previous: The figure below shows an experimental set up in a vacuum for investigating the effect of a magnetic field on the radiation emitted by a...

View more Physics Questions and Answers  |  Return to Questions Index

Exams With Marking Schemes

Related Questions