Four identical resistors are connected to form a square
PHYSICS · Single correct · AP · Physics 2: Algebra-based · Electric Circuits · Electric Circuits
Problem
Four identical resistors are connected to form a square. A fifth identical resistor is then connected between two opposite corners of the square, creating one diagonal path. A single ideal battery is placed in series with one of the edge resistors. How many independent closed loops exist in this circuit?
(a) 3
(b) 1
(c) 2
(d) 4