If a circuit has no switch then it remains 'on' permanently. If you desire to open or close a circuit, for turning on or turning off a light for example, you need some kind of switch.
The on and off switch controls the flow of electricity in the circuit. When the switch is on, it completes the circuit and allows electricity to flow through. When the switch is off, it breaks the circuit and stops the flow of electricity.
Yes.
To Complete the Circuit To allow the Electrons to Flow from the conducting material and to avoid the shocks plastics are used
A switch is placed in an electrical circuit in order to place a gap when the switch is off, so the circuit is broken. When the switch is on, the circuit is complete and the electricity can flow round the circuit.
Yes, a circuit can work without a switch if it is designed to be always on or if the components are connected directly without the need for a switch to control the flow of current. However, in many applications, a switch is necessary to control when the circuit is on or off.
You would need a 20 amp switch when the load controlled by the switch can draw as much as 20 amps. If you have a 20 Amp breaker supplying the circuit then you need to size all switches and outlets on that circuit to 20 amps.
A switch makes a physical break in the electric circuit. With the circuit broken the electricity can not flow. When the switch is turned the other way the circuit is completed and the current/electricity can flow.
it is a switching device that need a current..so u will need a resistor to open the switch..
The switch needs to be in the "on" position for the circuit to work, allowing the flow of electricity through the circuit. In the "off" position, the switch breaks the circuit, stopping the flow of electricity.
A 20 Amp single pole switch is needed when the circuit requires higher amperage capacity to safely control the load. Using a 15 Amp switch on a circuit that requires 20 Amps could lead to overheating and potential fire hazards. Always match the switch's amperage rating with the circuit's requirements for safety and proper functionality.
Not sure what you mean with "lemon circuit", but in an electrical circuit, the switch can be just about anywhere.
For an electrical circuit to keep going, it cannot be interrupted. When the switch is adjusted, the electrical flow is interrupted. Move the switch again and the flow is restored. Without a switch a circuit is no longer considered a complete circuit. Simple fifth grade science.