Refractive Index

In this circuit, diodes and are connected in parallel. Since the diodes are ideal, they act as short circuits when forward biased. The total voltage across both diodes will be 3V (from the battery). Given the resistance of each and the resistor, we calculate the total current through the circuit. The two 30Ω resistors are in parallel, so their equivalent resistance is . Now, the total resistance in the circuit is . Using Ohm's law , but taking into account the ideal diodes, we get the final current as . Hence, the correct option is (3).