Ammeter connected in an AC circuit measures:

Explanation

An ammeter measures the current in a circuit. In an AC (alternating current) circuit, the current varies sinusoidally over time. The ammeter measures the RMS (Root Mean Square) value of the current. The RMS value is a way to express the effective or equivalent DC (direct current) value of an AC current.Explanations for Wrong Choices:- (a) Exact value of current: While the RMS value is a measure of the effective current, it is not the exact instantaneous value at any given moment in time.- (c) Net value of current: This term is not commonly used in the con of AC circuits. The RMS value is the relevant measurement.- (d) Peak value of current: The ammeter does not measure the peak value directly. The RMS value is a more meaningful measure for AC circuits.So, the correct answer is (b) RMS value of current.