RP resistance

Question 1

NOT FULLY DONE ONLY LAST MINUTE MOCK

Question 2

equipment list

Answer 2

-battery/power supply
-ammeter
-voltmeter
-crocodile clips
-wire
-metre ruler
-switch (leads)
-resistors
-tape

Question 3

method resistance distance

Answer 3

1. set up the circuit-connect an ammeter, battery, wire taped to a metre ruler, crocodile clips and a voltmeter
2. attach a crocodile clip at 0cm (control, stay there throughout) and attach a second clip at 10cm on the ruler
3. record the readings from the ammeter and voltmeter
4. move the crocodile clip up a further 10cm and record the current and voltage
5. repeat every 10cm
6. calculate resistance using r=v/i

Question 4

method resistance parallel/series

Answer 4

1. set up the circuit-battery, ammeter, switch, two resistors and a voltmeter
2. switch on and record the readings of the voltmeter and ammeter
3. rearrange the resistors so they are in parallel
4. record the readings of the voltmeter and ammeter
5. calculate total resistance for series and parallel
6. series- R1+ R2
   parallel-1/R1+ 1/R2