Final answer:
The question pertains to finding loop equations for an electric circuit diagram using Kirchhoff's Voltage Law, which requires setting up equations for each loop where the sum of voltage drops equals the sum of voltage rises.
Step-by-step explanation:
The student seems to be asking about a problem related to electric circuits, specifically about finding loop equations in a given circuit diagram. To create loop equations, you apply Kirchhoff's Voltage Law (KVL), which states that the sum of all electrical potential differences around any closed network is zero. For each loop, you would set up an equation where the sum of the voltage drops (product of current and resistance) equals the sum of the voltage rises.
Example of Loop Equation
For loop 1, the equation might look something like this: V1 - I1*R1 - I2*R2 = 0, where V1 is the voltage source in loop 1, I1 is the current through R1, and I2 is the current through R2.
In the context of the student's original question, items (b) and (c) discuss currents through specific resistors, which is information typically used in the process of setting up these loop equations in a circuit analysis exercise.