Question

two resistors are connected first in series and then in parallel. what effect will it have on the reading of voltmeter and ammeter connected in these circuits ?

Answer 1

When the resistors are connected in series then the reading in the voltmeter will be more than the equivalent resistance in parallel also reading will be more in voltmeter when connected in parallel.

Answer 2

There will be no change in the readings

Ammeter:-

An ammeter is just a converted Galvanometer and measures the current flowing through the circuit by showing proportional deflection. An ammeter is formed by connecting a Galvanometer with a low resistance in parallel.

$\bigstar$So the Ammeter is connected in series with the circuit elements and measures the current flow in a circuit.

Voltmeter:-

A Voltmeter is also a converted Galvanometer which measures the amount of Voltage (or) in other words the potential difference accross two points in a circuit. A voltmeter is formed by connecting a Galvanometer in series with a high resistance.

$\bigstar$So the Voltmeter is attached in parallel in a circuit and measures the voltage in a circuit.