Question

What happens when the ammeter is connected in parallel and voltmeter is connected in series?

Answer 1

Hint:The potential difference between two locations in an electrical circuit is measured with a voltmeter. A voltmeter has a high resistance, therefore connecting them in series will raise the circuit's resistance and reduce the current. The purpose of an ammeter is to measure the current flowing through a circuit, hence it is linked in series.

Complete answer:
A voltmeter has a very high (preferably infinite) resistance and an ammeter has a very low (ideally zero) resistance. When an ammeter is connected in parallel to a load and a voltmeter is connected in series to the load, a large quantity of current will pass through the ammeter and a little amount of current will pass through the load. As a result, not only would both metres' readings be wrong, but the ammeter may also be destroyed because the current going through it is likely to be greater than its maximum permissible value.

Note:An ammeter has a very low internal resistance and relies on the circuit to limit the associated current flow to a level that the ammeter can handle. This is why an ammeter must always be linked in series, never in parallel, with the circuit it is metering. A voltmeter is always connected in parallel with the voltage source it is metering, thus if that voltmeter is genuinely connected in parallel with an energised source at the same time you connected the ammeter in parallel with it, it has nothing to do with it.