Exciting Math Problem: Calculating Resistance of a Graphite Rod
Are you ready to solve an interesting math problem involving resistance calculation?
Given the length of a graphite rod is 170 cm and its cross-sectional area is 60 mm2, with a resistivity of 3.5 * 10-5 Ωm.
What is the resistance of the graphite rod?
Answer:
R = 0.992 Ω
Let's dive into solving this exciting math problem involving the resistance calculation of a graphite rod.
To calculate the resistance of the graphite rod, we can use the formula:
Resistance = (resistivity * length) / Area
Given information:
Resistivity = 3.5 * 10^-5 Ωm
Length = 170 cm = 1.7 m
Area = 60 mm^2 = 60 / 1000000 m^2 = 6 * 10^-5 m^2
By substituting these values into the formula, we get:
Resistance = (3.5 * 10^-5 * 1.7) / 6 * 10^-5 = (3.5 * 1.7) / 6 = 0.992 Ω
Therefore, the resistance of the graphite rod is 0.992 Ω. Great job on solving this math problem!