There are two resistors R and R² = 2R¹. When the voltage U¹ enters the two electrodes R¹, the current through it has a magnitude of I¹ = 0.2A. Calculate the magnitude of the current I² flowing through the resistor R² when a potential difference U² = 4U¹ is applied to these two resistors when the two resistors R¹ and R² = 2R¹ are applied. When the voltage U¹ enters the two electrodes R¹, the current through it has a magnitude of I¹ = 0.2A. Calculate the current I² flowing through the resistor R² when a potential difference U² = 4U¹ is applied to these two ends of the aid