Final answer:
To calculate the current i5 flowing through resistor R5, typically Ohm's law (V = IR) would be applied. However, without further information such as voltage or total circuit current, the current through R5 is assumed to be 5 A as per the options provided.
Step-by-step explanation:
The question pertains to finding the current that flows through resistor R5, which is denoted as i5. Based on the information provided, assumptions, or additional circuit details may need to be included to accurately calculate i5. If R5 is the only resistor in the path from d to e, and other components are not influencing the current, the current i5 can be taken as the one provided in the options given, which is 5 A. This calculation typically involves applying Ohm's law, V = IR, where V is the voltage, I is the current, and R is the resistance. To solve complex resistor circuits, one often needs to combine series and parallel resistances to find the total resistance (Rtot) before applying Ohm's law to find the total circuit current (I).
Knowledge of the relationship between resistors in series and parallel, as well as the understanding that the current in series remains constant, is critical. Given additional context, such as the battery voltage or the resistance values, the Ohm's law could be used directly to calculate the current through R5. Additionally, the total current in the circuit would be required to calculate the individual currents if multiple paths or branches exist.