Pls help Fill in the Blank

_6. In a series circuit, if the resistance is increased, the current is (increased, decreased, not affected).

_ 7. If voltage in a circuit is doubled, the current is (doubled, cut in half, not affected).

_ 8. If the length of the wire in a circuit is shortened, the resistance in the circuit is (increased, decreased, not affected).

_9. Therefore, adding a longer wire to a circuit will (increase, decrease, not affect) the amount of current that flows through it.

_10. In order to maintain a constant amount of current, when adding more resistance to a series circuit the voltage difference must be increased, decreased, stay the same).​