Three conductors draw currents of 1A, 2A and 4A respectively when they are connected to a battery individually. If they are connected in series to same battery, the current drawn will be
(1) \(\frac{2}{7}A\)
(2) \(\frac{3}{7}A\)
(3) \(\frac{4}{7}A\)
(4) \(\frac{5}{7}A\)