F.2 science (T & F )

Read the following statements.Which one is T(correct) and which one is F (wrong)?
1)A dry cel of 3V has a greater electrical push than a dry ce of 1.5V.
2)Ammeters can be used to measure voltages.
3)We can get a higher voltage by joining cells in the opposite direction.
4)To measure the voltage of a cell,the red(+) terminal of a voltmeter should be conneted to the positive pole of the cell.