Three resistances each of 2Ω are connected together in a triangular shape. The resistance between any two vertices will be.
Three resistors, 2 Ω, 3 Ω and 6 Ω are connected in parallel in a circuit. The total resistance of the circuit is
Three resistors 2 Ω, 3 Ω and 4 Ω are connected in series in a circuit. The total resistance of the circuit is