A domestic appliance draws 2.5 A from a 220 V, 50 Hz power supply. The amplitude of current is
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 3.5 A
Given:
RMS current: $I_{\text{rms}} = 2.5\ \text{A}$
Amplitude (maximum) current:
$I_0 = \sqrt{2} I_{\text{rms}} = \sqrt{2} \cdot 2.5 \approx 3.54\ \text{A}$
Amplitude of current $≈ 3.54$ A