Resistance of a wire Flashcards
(7 cards)
1
Q
First
A
Set up a normal circuit with a battery an ammeter and a ruler with a wire attached to it with a voltmeter attached in parallel
2
Q
Second
A
Read current on ammeter and potential difference from voltmeter
3
Q
Third
A
Calculate resistance using v=ir
4
Q
Fourth
A
Repeat stages but add 10cm to the wife each time
5
Q
Fifth
A
Go until you reach 1m
6
Q
Sixth
A
Keep current low using variable resistor
7
Q
Seventh
A
The results should show as the length of wire is increased the resistance increases
