Question

In an experiment, Tom records the resistance value of a 20cm strip of metal that is kept at four (4)
different temperatures. His results are recorded below.
Temperature of metal strip 0°C
Resistance of metal strip 0.100
25°C
0.400
50°C
0.700
75°C
1.0Ω
What is the average change in resistance of the metal for each 10°C rise in temperature?
0.0120
B. 0.0130
C.
0.0140
D. 0.0160​

Answer 1

Explanation:

In an experiment, Tom records the resistance value of a 20cm strip of metal that is kept at four (4)

different temperatures. His results are recorded below.

Temperature of metal strip 0°C 25°C 50°C 75°C

Resistance of metal strip 0.10Ω 0.40Ω 0.70Ω 1.0Ω

What is the average change in resistance of the metal for each 10°C rise in temperature?

Answer 2

Answer:

 (a)0.012 resistance

Explanation:

(0.40-0.10= 0.3 resistance)

(25°C-0°C= 25°C)

Then devide, (0.3÷25 = 0.012 resistance