Final answer:
The question pertains to high school-level Physics, focusing on calculating currents in circuits using Ohm's law and parallel resistance formulas.
Step-by-step explanation:
The question relates to the subject of Physics and is most suitable for a High School grade level. It involves analyzing a circuit with resistors, calculating the total current using Ohm's law, and potentially applying principles such as Kirchhoff's rules to determine the currents in different branches of the circuit. Identifying the proper utilities and voltages across components like batteries and resistors, as well as considering the effects of inductive reactance and resistance values in both series and parallel circuits are essential parts of solving these physics questions.
To calculate the total current in a circuit with two resistors in parallel, where the resistance values are 15 Ω and 7 Ω respectively, we first determine the total resistance using the formula for parallel resistors: 1/Rp = 1/R1 + 1/R2. After finding the equivalent resistance (Rp), we use Ohm's law (V = IR) to find the total current, with V being the voltage of the source.