alleryStart learning →A 6.00 ohm resistor is wired in parallel with other resistors straight across a 12.0 V battery. What current flows through the 6.00 ohm resistor?
A2.00 A
B0.600 A
C12.0 A
D1.61 A
Answer & Solution
Correct answer: A. 2.00 A
1. A parallel branch has the whole battery voltage across it, here 12.0 V.
2. Ohm's law for that branch gives I = V / R = 12.0 V / 6.00 ohm.
3. I = 2.00 A, and this value does not depend on what the other branches are doing.
4. The figure 0.600 A belongs to the same three resistors wired in series, where they share the voltage instead.
_Source: OpenStax College Physics (CC BY 4.0), Ch 21 "Circuits and DC Instruments", section 21.1 Resistors in Series and Parallel_
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