Question 43
Calculate the length of a constantan wire of cross- sectional area 4 π x 10-8m2 and resistivity 1.1 x 10-6 Ω m required to construct a standard resistor of resistance 21 Ω. [Take π = 22/7]
Objective
Question details
- Exam body
- WAEC
- Subject
- Physics
- Year
- 1992
- Question no.
- #43
- Type
- Objective
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