Every time you open your fridge door - or indeed your freezer's door - it allows cold air to fall out onto the floor of the room. If this is allowed to happen for more than a few moments the thermostat inside the fridge or freezer, sensing that too much cold air has gone, will turn on the fridge's motor and compressor pump to cool down the new air. The more the compressor pump and its motor are forced to run unnecessarily, the more electricity would be used, with the consequence that the money to pay for that electricity would simply be wasted.
Knowing those "facts of life" it should be easy to understand why it is better to keep the door closed as much as possible instead of leaving it to hang open for more than the short time it takes to load or unload food from the fridge.
By varying the amount of electricity by opening and closing circuits in sequence.
The opposite of opening would be closing or shutting.
A switch in an electrical circuit controls the flow of electricity by opening or closing the circuit, allowing or stopping the flow of electricity through the circuit.
by opening their mouths then closing it then opening it again, then closing it:-)
When you turn on a lamp, you are closing the circuit. This allows electricity to flow from the power source, through the lamp, and back to the power source, enabling the lamp to light up.
opening is 1500 n closing is 4889
A light switch controls the flow of electricity to a light source by opening or closing the circuit, allowing or stopping the electricity from reaching the light bulb.
The opening of the Berlin Wall signified the closing of the Cold War.
EAMCET OPENING AND CLOSING RANK 2008
A device used to start and stop the flow of electricity is called a switch. It is typically used to control the flow of electricity to a specific circuit or device by opening or closing the electrical connection.
closing
The purpose of a snap switch in an electrical circuit is to control the flow of electricity by opening or closing the circuit when activated.