 |
ECE602S - ELECTRICAL CIRCUITS AND ELECTRONICS - 2ND OPP - JANUARY 2024 |
|
|
1 Page 1 |
▲back to top |
nAm IBIA UnlVERSITY
OF SCIEnCEAnDTECHnOLOGY
FacultyofHealthN, atural
ResourceasndApplied
Sciences
Schoolof NaturalandApplied
Sciences
Departmentof Biology,
Chemistryand Physics
13JacksonKau]euaStreet T: +264612072012
Private Bag13388
F: +264612079012
Windhoek
E: dbcp@nust.na
NAMIBIA
W: www.nust.na
QUALIFICATION: BACHELOR OF SCIENCE
QUALIFICATION CODE: 07BOSC
COURSE:ELECTRICALCIRCUITS AND ELECTRONICS
DATE: JANUARY 2024
DURATION: 3 HOURS
LEVEL:6
COURSECODE: ECE602S
SESSION: 1
MARKS: 100
SECOND OPPORTUNITY/ SUPPLEMENTARY: EXAMINATION QUESTION PAPER
EXAMINER:
MODERATOR:
PROF MUNAWAR KARIM
DR VAINO INDONGO
INSTRUCTIONS
1. Answer all questions on the separate answer sheet.
2. Please write neatly and legibly.
3. Do not use the left side margin of the exam paper. This must be allowed for the
examiner.
4. No books, notes and other additional aids are allowed.
5. Mark all answers clearly with their respective question numbers.
PERMISSIBLE MATERIALS:
1. Non-Programmable Calculator
This paper consists of 2 pages including this front page
Electrical Circuits and Electronics (ECE602S),Supplementary Examination, January 2024 1
|
|
2 Page 2 |
▲back to top |
1) Describe an experiment to measure the open circuit voltage of a cell. Show the circuit
components needed as well as meters required for the measurement.
{40)
2) Draw a circuit diagram for an inverting amplifier with a gain of ten. Label all components.
(20)
3) For a sinusoidal signal the current output of a circuit lags 90Qbehind the input. Identify the
circuit component. Provide your reasoning.
(20)
4) For a sinusoidal signal the voltage output of a circuit leads the input by 90Q. Identify the
circuit component. Provide your reasoning.
(10)
5) A sinusoidal signal needs to be attenuated by a factor of 1000 at a frequency of 1000 Hz.
Design a circuit that will meet the requirements. Calculate and identify the components. (10)
END OF QUESTION PAPER
Electrical Circuits and Electronics (ECE602S}, Supplementary Examination, January 2024 2