Certified Biomedical Equipment Technician (CBET) Practice Exam

In a parallel circuit, all components connected in parallel share the same voltage across their terminals. This means that regardless of how many resistors are present or their individual resistance values, each resistor in this case will experience the full voltage of the power source.

Given that the power supply in this circuit provides 10 VDC, each of the four 10-ohm resistors connected in parallel will have 10 volts across them. Therefore, the voltage at each resistor is 10 V. This property of parallel circuits allows for consistent voltage across all components, a fundamental principle that is critical for understanding circuit behavior.