SUMMARY
The current in a hollow nichrome wire connected to a 2.50 V battery is calculated to be 277 A. The wire has a length of 10.0 cm, an inner diameter of 2.20 mm, and an outer diameter of 5.10 mm. The resistance is determined using the formula R = ρ*(L/A), where ρ is the resistivity of nichrome (1.5E-6 ohm-meters). The calculations reveal that the resistance R is 0.00902 ohms, leading to the derived current I using Ohm's Law (V = IR).
PREREQUISITES
- Understanding of Ohm's Law (V = IR)
- Knowledge of electrical resistance and resistivity
- Familiarity with cross-sectional area calculations for cylindrical objects
- Basic proficiency in using mathematical software for complex calculations
NEXT STEPS
- Research the properties and applications of nichrome wire in electrical engineering
- Learn about the impact of wire dimensions on electrical resistance
- Explore advanced calculations involving resistivity and temperature dependence
- Study the use of WolframAlpha for solving complex mathematical problems
USEFUL FOR
Electrical engineers, physics students, and anyone involved in circuit design or analysis will benefit from this discussion, particularly those focusing on resistance calculations in conductive materials.