Question

In the given circuit diagram, Minakshi replaced the ammeter by a voltmeter by mistake. Will this circuit work?

Answer 1

No, the circuit will not work.

An ammeter has very low resistance and is connected in series to measure current. A voltmeter has very high resistance and must be connected in parallel across a component to measure potential difference.

When the voltmeter is connected in series by mistake, its very high resistance enormously increases the circuit's total resistance. As a result, the current through the circuit becomes almost zero, so R₁ and R₂ receive insufficient current, and the circuit will not function.