If the ammeter were connected in parallel, the path may become short-circuited such that all the current will flow through the ammeter instead of the circuit.
Haddii ammeterku ku xiran yahay isbarbar dhig, jidku wuxuu noqon karaa mid gaagaaban oo wareegeeya si ay dhammaan qulqulka hadda u dhex maraan aaladda mitirka halkii bedka.