Final answer:
Current in the 3 ohm resistor is 0.5A, in the 6 ohm resistor is 0.25A, and the total current from the cell is 0.75A. The resistance of the parallel combination is 2 ohms.
Step-by-step explanation:
The student is asking about the current in different parts of a parallel circuit and the resistance of the combination when a 3 ohm resistor and a 6 ohm resistor are connected across a 1.5V cell. In a parallel circuit, the voltage across each resistor is the same, so we use Ohm's law, = , to calculate the current through each resistor. For the 3 ohm resistor, the current would be = = 0.5A. For the 6 ohm resistor, it would be = = 0.25A. The total current from the cell is the sum of currents through each resistor, which is 0.5A + 0.25A = 0.75A. The resistance of the parallel combination can be calculated using the formula for parallel resistors = = = . For the given resistors, it is = = 2 ohms.