A 20A fuse is included in the mains. Determine what the minimum resistance must be for an electrical appliance

A 20A fuse is included in the mains. Determine what the minimum resistance must be for an electrical appliance connected to a 220V outlet in order for the network to continue to work?

To determine the minimum resistance of an electrical appliance, we use Ohm’s law:

I = U / R, where:

I is the current in the network, A;

U is the voltage in the network, V;

R – network resistance, Ohm;

From the Ohm’s law formula it follows that:

R = U / I = 220/20 = 11 Ohm;

Answer: the minimum resistance at which the fuse does not blow and the network continues to work is 11 ohms.