Question
Question: The problem asks to find the equivalent resistance of the given circuit. The circuit shows three res...
The problem asks to find the equivalent resistance of the given circuit. The circuit shows three resistors connected in a delta (triangle) configuration, with resistances 2 Ω, 3 Ω, and 5 Ω between points A-C, C-B, and A-B respectively. Since the question does not specify between which two points the equivalent resistance is to be calculated, we will calculate it between points A and B, which is a common convention for such problems.

The equivalent resistance between points A and B is 2.5 Ω.
Solution
The circuit forms a delta (triangle) configuration. To find the equivalent resistance between two terminals (say, A and B), the resistor directly connecting these terminals (5 Ω) is in parallel with the series combination of the other two resistors (2 Ω and 3 Ω). The series combination is 2+3=5 Ω. The parallel combination of 5 Ω and 5 Ω yields Req=5+55×5=1025=2.5Ω.