BY TWO PIECES OF ELECTRICAL CONDUCTIVE WIRES
By 'switching on an electrical appliance' we are completing (closing) the electrical circuit, allowing electricity to flow and the device to work.
I think it is due to the resistance to the electrical appliance, the resistance offered by the electrical appliance works as a load in the circuit and when load is removed it causes sparking.
It uses a single battery
It uses a single battery
"A battery stores electrical energy."
it has a battery
Electrical testing meters can definitely aid in the troubleshooting process of an appliance. This is because if it reads "no voltage" when plugged into the outlet, then the fuse or circuit is at fault, not the appliance.
Chemical energy in the battery is turned into electrical energy when the battery is hooked up to an electrical circuit.
Electrical currents require a circuit to flow. If the circuit is broken, then the electrical current will not flow. A switch is a prime example of this principle. When a switch is off, the circuit is broken. However, when it is turned, the circuit is completed and allows for the electrical current to flow through the appliance.
It uses a single battery
Shaver
The appliance's circuit is open.