posted by Bonnie .
A circuit contains a 12V power source, and a 3ohms, 4ohms, and 6ohms, resistor. How should the resistors be arranged for the current through the battery to be 2A?
you want a total of six ohms. The easy way is to put the six ohm resistor in the circuit, and then dangle the other two resistors off a connection, with the other end unconnected.
The other way: What is the resistance of the six and three ohm in parallel?