resistance of a lengthen wire practical

Question 1

draw the circuit diagram for the practical

Answer 1

…

Question 2

what is the first step

Answer 2

attach a wire to a metre rule with tape and attach crocodile clips to the wire to connect it to the circuit

Question 3

what is the second step

Answer 3

measure the distance between the crocodile clips using the metre rule and note this down. take the readings from the ammeter and voltmeter and use the equation r=v/I to get resistance. take multiple readings and take the mean

Question 4

what is the third step

Answer 4

change the length of the wire by increasing or decreasing the distance between the crocodile clips and repeat step 2.

Question 5

extra points to consider

Answer 5

turn circuit power of during readings as the temperature of the wire could affect resistance.
note down the size and type of wire.