Factors - I will be changing the length of the wire Prediction - I predict that the longer the wire the higher the resistance

• Keep the voltage and amps the same
• Keep the equipment in the same position
• Keep the thickness of the wire the same
• Use the same wire                

Apparatus - The apparatus I will be using are:

• Lab pack
• Ammeter
• Voltmeter
• Crocodile clips
• 1 Metre nichrome wire
• Metre ruler
• Switch

You’re Experiment -

1. Place all apparatus onto a table
2. Place apparatus as:
                  Battery then switch then ammeter then wire then place  

                voltmeter parallel to the wire

3. Put one crocodile clip at one end of the nichrome wire and the second 10cm away
4. Read and record the results from voltmeter and ammeter onto a table
5. Keep everything the same (voltmeter and wire)
6. Move the second crocodile clip another 10cm away from the first one
7. Record the result of the voltmeter and the ammeter on the table
8. Repeat this four more times at 30cm, 40cm, 50cm and 60cm and record the results

Diagram -

Safety - Connect all the apparatus correctly make sure that everything works and nothing is faulty.

Results -

First Results

Second Results

Average Resistance

Conclusion - I found out that the longer the nichrome wire the longer the resistance.

Evaluation -