Syllabus IX

 DRPCAU *Pusa*      

       Syllabus 2020--21

                 *WE*

          (Work Education)       

Class IX (THEORY)

1. *Electrical Safety device* 

• Fuse (already in lower class) 

• Circuit breakers (Earth leakage Circuit breaker, Miniature circuit breaker *MCB* ) 

• Isolators ( Two poles & Four poles) 

2. *Earthing* 

• Importance 

• Use 

• Types of earthling, diagrams 

3. *Electromagnetism*

• Faraday’s law of Electromagnetism 

• Fleming’s left hand rule 

• Fleming’s right hand rule 

4. *Motor and Generator* 

• Motor: principle, types, uses 

• Generator: Principles, types and use 

5. *House wiring*

• Basic principle of switch board

  connections.

• Why a switch is to be connected in phase wire only and never in neutral wire

6. *Switch Boards* 

 

• Connection of Switch board of following types: 

a) One load, one switch 

b) Two loads, two switches 

c) One load, two switches 

d) Two loads, one switch 

e) Bed switch 

f) Fuse in a switch board 

g) Tube light connection 

7. *Bulbs/Tubes*

        ( In brief) 

• Basic principle 

• Types of bulb 

• Domestic and Industrial bulbs 

• Power saving bulbs i.e. CFL 

• Tube lights 

8. *Electrical Instruments*

• Ammeter: principle, use and types 

• Voltmeter: principle, use and types 

• Multi meter: importance, Principle, use and types 

9 *Electronics*

 a) Soldering Iron

 

• Working Principle 

• Types , use 

b) *Basic electronics materials*

• Resistors: functions & use, Color code 

• Capacitors: functions & use 

• LED : Function & use 

 

10. *Diodes and their characteristics*

*Transistors*

• Working Principle 

• Types , use 

11. *Ohm’s law*

• Explanation of Ohm’s law 

PRACTICAL FOR CLASS IX 

1. Identify the objects needed for house wiring 

2 Do the practical switch board connection of : 

a) One load, one switch 

b) Two loads, two switches 

c) One load, two switches 

d) Two loads, one switch 

e) Bed switch 

f) Fuse in a switch board 

g) Tube light connection 

3. Measure Current by using an ammeter 

4 Measure voltage by using a voltmeter. 

5 connect all the components of a normal tube light fittings. 

6 Do soldering on a practice board and join two wires. 

7. Identify different electronics items like resistors, capacitors, transistors etc 

8. Visit to a near by industry and see various types of bulbs & lighting 

accessories.