Question 46
EasyOriginal questionWhat current flows through the circuit shown?
Show the answer and explanation
CorrectNot quiteAnswer A
Correct answer: A
Explanation
In series, the resistances add: 4 + 8 = 12 Ω.
Current I = V ÷ R = 12 ÷ 12 = 1 A.
Worth noting
3 A and 1.5 A use one resistor alone; 4.5 A adds those two currents as if the resistors were in parallel.
- Concept
- Ohm's law in a series circuit
- Typical timeTypical
- 35 s
- Your timeYours
- —
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