Resistivity and Temperature Coefficient
Homework
1. State the four factors affecting the resistance of a material.
2. Define resistivity of materials and state its unit. Write the equation used to calculate resistivity.
3. Define temperature coefficient.
4. (a) What does positive temperature coefficient mean?
(b) What does negative temperature coefficient mean?
(c) What does zero temperature coefficient mean?
5. Give at least two (2) examples EACH of 4 (a), 4 (b) and 4 (c).
1. State the four factors affecting the resistance of a material.
2. Define resistivity of materials and state its unit. Write the equation used to calculate resistivity.
3. Define temperature coefficient.
4. (a) What does positive temperature coefficient mean?
(b) What does negative temperature coefficient mean?
(c) What does zero temperature coefficient mean?
5. Give at least two (2) examples EACH of 4 (a), 4 (b) and 4 (c).