A car fuse marked 3A operates optimally on a 12V battery, calculate the resistance of...
PHYSICS
WAEC 2004
A car fuse marked 3A operates optimally on a 12V battery, calculate the resistance of the fuse
- A. 36.0\(\Omega\)
- B. 15.0\(\Omega\)
- C. 9.0\(\Omega\)
- D. 4.0\(\Omega\)
Correct Answer: D. 4.0\(\Omega\)
Explanation
R = \(\frac{v}{I} = \frac{12}{3} = 4\Omega\)
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