Problem: When a 20-V emf is placed across two resistors in series, a current of 2.0 A is present in each of the resistors. When the same emf is placed cross the same two resistors in parallel, the current through the emf is 10 A.
Part A: What is the magnitude of the greater of the two resistances?
I need help to find the magnitude of the greater of the two resistances.