ISC Class 12 Project Work in Electricity and Electronics

ELECTRICITY AND ELECTRONICS (866)

CLASS XII

PAPER II (PROJECT WORK FOR CLASS XII): 20 Marks

The Project work will be assessed by the subject Writing the procedure to measure the values of
teacher and the Visiting Examiner appointed locally resistances, capacitances and inductances using
and approved by the Council. multimeter.
All candidates will be required to have completed two 4. Different types of switches (any five), circuit
projects from any topic/s covered in theory. protecting devices and their specifications.
Mark allocation for each project (10 marks) *: Switches: single-pole, single-throw (SPST),
single-pole, double-throw (SPDT), double-pole,
Criteria Marks
single-throw (DPST), double-pole, double-throw
1. Title of the Project and 1 (DPDT), Rotary switch, Push Button switch, relay.
Introduction Miniature circuit breaker (MCB), fuse, fuse holder
2. Content 3 (show samples), switch action (continuity and
discontinuity using multimeter) Specifications;
3. Presentation and originality 2 current and voltage ratings.
4. Conclusion/Comments/Summary 1 5. Distribution of electric power (D.C and A.C
5. Viva- Voce (Visiting Examiner) 3 distribution) using overhead and underground
TOTAL 10 cables along with their advantages and uses.
6. V-I Characteristics of a semiconductor diode
(PN), its types and use of any one type of
List of suggested assignments for Project Work: semiconductor diode.
1. Electrical accessories (any five), meters and 7. V-I Characteristics of a Zener Diode and its use as
equipment (any three) used in the laboratory a voltage regulator.
(along with precautions to be observed).
8. Half wave and Full wave rectifier (either centre-
Accessories (tools) used in Laboratory: Soldering tapped or bridge type) with/without filter circuit.
gun, soldering stand, solder (lead), nose plier,
9. Electrical accessories (Power outlets, lamp
wire stripper, line tester, tag-board, breadboard,
holders, ceiling roses and junction boxes) their
general purpose printed circuit board (PCB).
structure and uses.
Meters and equipment: DC milliammeter, AC
10. Simple circuitry of lighting and power circuits
milliammeter, DC Voltmeter, AC voltmeter,
(domestic use), their layout and limitations,
Digital Multimeter, Variable DC power supply,
following IEE regulations.
Fixed DC power supply, Audio signal generator,
Cathode Ray Oscilloscope (CRO). 11. Principle, construction and working of DC motor
with explanation of any one type of DC motor.
2. Electrical Cables, their types, uses and
specifications. (Any 5 types, with one use and 12. Characteristics of DC generator and DC motor.
important specifications). 13. Types of microphones (any two) giving their
3. Measuring the values of different types of: construction, working and uses with diagrams.
(i) resistors using colour code 14. Types of loudspeakers (any two) giving their
construction, working and uses with diagrams.
(ii) capacitors using code number .

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15. Construction and working principle of power
supply including common faults, causes, testing
and repair.
16. Multimeters and their types including functions
of any one type of multimeter.
17. Transistor Audio Power Amplifiers (any two
types), their advantages, disadvantages and uses.
18. Principle, construction, working and uses of
Cathode Ray Oscilloscope.
NOTE: No question paper for Project work will be
set by the Council.

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SAMPLE TABLE FOR PROJECT WORK
S. Unique PROJECT 1 PROJECT 2 TOTAL
No. Identification MARKS
Number A B C D E F G H I J
(Unique ID) of
the candidate Teacher Visiting Average Viva-Voce Total Teacher Visiting Average Viva-Voce Total (E + J)
Examiner Marks by Visiting Marks Examiner Marks by Visiting Marks
(A + B ÷ Examiner (C + D) (F + G ÷ Examiner (H + I)
2) 2)
7 Marks 7 Marks 7 Marks 3 Marks 10 7 Marks 7 Marks 7 Marks 3 Marks 10 Marks 20 Marks
Marks
1

2

3

4

5

6

7

8

9

10

*For breakup of the 7 Marks to be awarded separately by the Teacher and the Visiting Examiner, please refer to the table giving the criteria
for mark allocation for each project.

NOTE: VIVA-VOCE (3 Marks) for each Project is to be conducted only by the Visiting Examiner and should be based on the Project only.

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