COMEDK 2024 Shift 1 Paper

A cell of emf E and internal resistance r is connected to two external resistances R1 and R2 and a perfect ammeter. The current in the circuit is measured in four different situations:
(a) without any external resistance in the circuit.
(b) with resistance R1 only
(c) with R1 and R2 in series combination.
(d) with R1 and R2 in parallel combination.
The currents measured in the four cases in ascending order are