Question

what is the resistance of an ammeter​

Answer 1

Answer:

Ammeter is a device that is applied in series to the circuit through which we want to calculate the current.

An Ammeter if have resistance can make equivalent circuit resistance more than that of the actual circuit resistance. and which in turn reduces the current and hence we face error in the current.

In practical there is no any conductor whose resistance is zero, but practical ammeters have very low resistances which causes very low error and which can be negligible.

But for the ideal or perfect ammeter we need zero resistance so that the property of measuring instrument cannot affect the readings of the circuit.

Answer 2

$\mathfrak{ANSWER:) }$

❏❏The resistance of the ammeter is very small as compared voltmeter. For ideal ammeter, the value of resistance is equal to zero. The small resistance does not obstruct the flow of current, and thus the ammeter measures the true value.❏❏

See the attachment