Final answer:
The question is asking for the current from an ideal current source in a circuit where there is no current through a specific resistor. It relates to Ohm's Law and the principle that if no current flows through a resistor, there is no voltage drop across it.
Step-by-step explanation:
The question seems to pertain to a circuit analysis problem in physics. We're looking for the current in an ideal current source, specifically when there is no current flowing through a 5Ω resistor. To find this, we would use Ohm's Law, which is V = IR, where V is voltage, I is current, and R is resistance. Since no current is flowing through a given resistor, that implies there's no voltage drop across it. In a scenario where multiple resistors are in series and one has zero current, it may indicate that it's either bypassed by a parallel circuit, or the source is providing no current. Without more context or a specific circuit diagram, it is difficult to provide a more precise answer.