Use the diagram below to calculate the current, I.
PHYSICS
WAEC 2010
Use the diagram below to calculate the current, I.
- A. 0.60A
- B. 0.97A
- C. 1.03A
- D. 5.00A
Correct Answer: B. 0.97A
Explanation
\(\frac{1}{R} = \frac{1}{R_1} + \frac{1}{R_2}\)
= \(\frac{1}{6} + \frac{1}{4}\)
R = \(\frac{12}{5} = 2.5\Omega\)
R = 2.4 + 10 = 12.4
V = IR
I = \(\frac{v}{R} = \frac{12}{12.4} = 0.97\)
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