Type: Individual
| Tools & Equipment | Materials |
|---|---|
| Battery holder (2-cell AA) | Insulated copper wire (0.5 mm diameter) |
| Ammeter (0-1 A range) | Iron rod (150 mm length, 10 mm diameter) |
| Connecting wires with alligator clips | 1.5V AA batteries |
| Switch | Iron filings or small iron nails |
| Multimeter | |
| Safety goggles | |
| Latex gloves | |
| Lab coat |
| S/N | Item | Quantity |
|---|---|---|
| 1 | Insulated copper wire (0.5 mm diameter) | 5 meters per Candidate |
| 2 | Iron rod (ferromagnetic core) 150 mm length, 10 mm diameter | 1 Pc per Candidate |
| 3 | Battery holder (2-cell AA) | 1 Pc per Candidate |
| 4 | 1.5V AA batteries | 2 Pcs per Candidate |
| 5 | Ammeter (0-1 A range) | 1 Pc per Candidate |
| 6 | Connecting wires with alligator clips | 3 Pcs per Candidate |
| 7 | Iron filings or small iron nails for testing magnetic strength | 10 g per Candidate |
| 8 | Switch | 1 Pc per Candidate |
| 9 | Multimeter (for voltage and current measurement) | 1 Pc per 2 Candidates |
| 10 | Safety goggles | 1 Pair per Candidate |
| 11 | Latex gloves | 1 Pair per Candidate |
| 12 | Lab coat | 1 Pc per Candidate |
| Items to be Evaluated | Marks Available | Marks Obtained | Comments |
|---|---|---|---|
| TASK 1: Assembly and Testing of Electromagnet | |||
| Wore the appropriate PPE: Latex gloves, Safety goggles, Lab coat (Award 1 mark for each PPE worn, 0 for incomplete task, max 4 marks) | 4 | ||
| Measured and cut 5 meters of insulated copper wire (Award 1 mark for measuring, 1 mark for correct length) | 2 | ||
| Neatly wound the copper wire uniformly around the iron rod with at least 50 turns (Award 2 marks for uniform winding, 2 marks for number of turns) | 4 | ||
| Connected the wire ends to the battery holder terminals using alligator clips (Award 1 mark for each correct connection, max 3 marks) | 3 | ||
| Installed 2 AA batteries correctly in the battery holder (Award 1 mark for correct polarity, 1 mark for secure fitting) | 2 | ||
| Connected the ammeter in series and switch in circuit to control current (Award 1 mark for correct ammeter connection, 1 mark for switch placement, 1 mark for secure connections) | 3 | ||
| Tested the electromagnet by switching on and attracting iron filings or nails (Award 1 mark for successful attraction, 1 mark for demonstration at first current, 1 mark for safety during test) | 3 | ||
| Measured and recorded current at three different settings by adjusting battery connections or adding resistors (Award 1 mark for each current measurement and recording, total 3 marks; 2 marks for adjusting current safely) | 5 | ||
| Recorded observations of magnetic strength (number of filings/nails attracted) at each current level (Award 1 mark per observation recorded accurately, total 3 marks; 1 mark for logical correlation) | 4 | ||
| Disconnected the circuit safely and stored equipment properly (Award 1 mark for safe disconnection, 1 mark for proper storage) | 2 | ||
| Sub-Total | 32 | ||
| PRODUCT CHECKLIST | |||
| Electromagnet constructed with at least 50 uniform wire turns around 150 mm x 10 mm iron rod (Award 3 marks for number of turns, 2 marks for neat uniform winding) | 5 | ||
| Circuit connections correct and secure with ammeter and switch correctly placed (Award 2 marks for correct ammeter connection, 2 marks for switch placement and secure wiring) | 4 | ||
| Accurate measurement and recording of current at three levels (e.g. approx. 0.3A, 0.6A, 0.9A) (Award 2 marks for accuracy of measurements, 2 marks for correct recording) | 4 | ||
| Clear demonstration of increasing magnetic strength with increasing current (Award 3 marks for visible correlation, 2 marks for documented observations) | 5 | ||
| Electromagnet functions safely without overheating or short circuits (Award 3 marks for safe and stable operation throughout test) | 3 | ||
| Sub-Total | 21 | ||
| GRAND TOTAL | 53 | ||
Type: Individual
| Tools & Equipment | Materials |
|---|---|
| Electromagnet coil | |
| DC power supply (0-30 V, 5 A) | |
| Gauss meter with probe | |
| Connecting wires with crocodile clips | |
| Switch | |
| Ruler (metric scale, 300 mm) | |
| Insulated gloves | |
| Safety goggles | |
| Lab coat |
| S/N | Item | Quantity |
|---|---|---|
| 1 | Electromagnet coil | 1 Pc per Candidate |
| 2 | DC power supply (0-30 V, 5 A) | 1 Pc per Candidate |
| 3 | Gauss meter with probe | 1 Pc per Candidate |
| 4 | Connecting wires with crocodile clips | 1 Set per Candidate |
| 5 | Switch | 1 Pc per Candidate |
| 6 | Ruler (metric scale, 300 mm) | 1 Pc per Candidate |
| 7 | Insulated gloves | 1 Pair per Candidate |
| 8 | Safety goggles | 1 Pair per Candidate |
| 9 | Lab coat | 1 Pc per Candidate |
| Items to be Evaluated | Marks Available | Marks Obtained | Comments |
|---|---|---|---|
| TASK 1: Preparation and Safety | |||
| Wore appropriate PPE: lab coat, safety goggles, insulated gloves (Award 1 mark each for lab coat, goggles, gloves; 0 if incomplete) | 3 | ||
| Checked all equipment condition before use (Award 2 marks for complete checks, 0 if skipped) | 2 | ||
| Connected electromagnet coil to DC power supply correctly using wires and switch (Award 1 mark for each correct connection: coil to wires, wires to power supply, inclusion of switch) | 3 | ||
| Set power supply voltage to 12 V before powering the electromagnet (Award 2 marks for correct voltage setting, 0 if incorrect) | 2 | ||
| Sub-Total | 10 | ||
| TASK 2: Measurement Procedure | |||
| Switched on power supply and energized electromagnet (Award 2 marks for correct safe switching on, 0 if unsafe or incorrect) | 2 | ||
| Used ruler to measure distances of 10 mm, 20 mm, 30 mm, 40 mm, and 50 mm from coil center (Award 1 mark per correct distance measurement, 0 if missed or inaccurate) | 3 | ||
| Measured magnetic field strength at each distance with Gauss meter (Award 1 mark per correct measurement at each distance; 0 if missing or incorrect) | 5 | ||
| Recorded all measurements clearly and accurately in a table (Award 3 marks for clear, accurate recording; 0 if incomplete or incorrect) | 3 | ||
| Sub-Total | 13 | ||
| TASK 3: Shutdown and Cleanup | |||
| Switched off power supply safely before disconnecting (Award 2 marks for safe shutdown, 0 if unsafe) | 2 | ||
| Disconnected wires and stored equipment properly (Award 2 marks for proper disconnection and storage, 0 if not) | 2 | ||
| Disposed of any waste or cleaned workspace (Award 1 mark for cleaning up, 0 if neglected) | 1 | ||
| Sub-Total | 5 | ||
| PRODUCT CHECKLIST | |||
| Magnetic field strength measurements recorded at all five specified distances (Award 1 mark for each correctly recorded measurement at 10, 20, 30, 40, 50 mm) | 5 | ||
| Measurements show decreasing magnetic field strength with increasing distance (Award 3 marks if data shows correct trend, 0 if inconsistent or reversed) | 3 | ||
| Table of measurements is neat, legible, and correctly labelled (Award 2 marks for neatness and correct labelling, 0 if poor or missing labels) | 2 | ||
| Sub-Total | 10 | ||
| GRAND TOTAL | 38 | ||