A residual-current device (RCD) is widely used in electrical circuits?

ایک بقایا کرنٹ ڈیوائس (آر سی ڈی) بڑے پیمانے پر برقی سرکٹس میں کس لیے استعمال ہوتی ہے؟

For voltage regulation

For shock safety

For leakage current detection

For circuit breaker

A residual-current device (RCD) is widely used in electrical circuits for shock safety.

It detects leakage currents and disconnects the circuit to prevent electric shocks.