Question

in a circuit a metallic wi
re is connected in series with a battery and an ammeter .
if another wire (same metal same length and cross sectional area) is connected in parallel to the metallic wire the current in ammeter will be

Answer 1

If the second wire is conmected in parallel as in case (i)[ref. pic]; The current in ammeter will not change.

But if it is connected as in case (ii) [ref. pic.]; The current in ammeter will become 1/2(provided the second wire is of the same length,crosssection&material as the first one used)

Hope it helps...

Regards;

Leukonov/Olegion.