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When a switch is closed, it forms a complete circuit which allows voltage to flow through the circuit. This completes the path for electricity to move from the power source through the circuit. In other words, closing a switch allows the flow of current and voltage through the circuit.

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1y ago

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How does a switch control a parallel circuit?

In a parallel circuit, each branch has its own pathway for current to flow. A switch placed in one branch of the circuit can control the flow of current through that specific branch only, without affecting the other branches. When the switch is closed, it allows current to flow through that branch; when it's open, it blocks the flow of current.


What switches must be closed in order for the light bulb to light up?

To light up the bulb, the two-way switch must be closed in the on position at both the 'Switch 1' location and the 'Switch 2' location. This will complete the circuit and allow electricity to flow to the light bulb, turning it on.


What purpose of switch in electric circuit?

A switch in an electric circuit is used to control the flow of electricity. It can be opened to interrupt the flow or closed to allow electricity to pass through. Switches are commonly used to turn devices on or off in electrical systems.


Why do conductors allow electricity through?

Conductors allow electricity to flow through them because they have free electrons that can easily move from atom to atom when a voltage is applied. This movement of electrons creates an electric current, allowing the flow of electricity through the material.


What statements is true about circuits?

Circuits are paths that electricity can flow through, typically consisting of components like wires, resistors, capacitors, and switches. They can be either open (broken) or closed (complete) to allow current to flow or stop it. Circuits follow Ohm's law, which states that voltage equals current multiplied by resistance.

Related Questions

When you turn the light switch on you get no dash lights console radio?

try replacing the dimmer switch they sometimes go bad and do not allow voltage to the lights


What circuits are closed paths that will allow electricity to travel in a loop and make a light bulb work?

a switch


How does a switch control a parallel circuit?

In a parallel circuit, each branch has its own pathway for current to flow. A switch placed in one branch of the circuit can control the flow of current through that specific branch only, without affecting the other branches. When the switch is closed, it allows current to flow through that branch; when it's open, it blocks the flow of current.


What switches must be closed in order for the light bulb to light up?

To light up the bulb, the two-way switch must be closed in the on position at both the 'Switch 1' location and the 'Switch 2' location. This will complete the circuit and allow electricity to flow to the light bulb, turning it on.


What is the evidence that an electrical circuit is closed?

When that circuit has no breaks. It is an endless path of current flow.


What is the difference between a fail open valve and a fail closed valve?

Lets liken this to a garden hose, a hose in the normally open position has water flowing through it until it is closed by turning the spigot off, normally closed is the reverse. Oddly enough when it comes to an electronic relay the opposite is true, whereas the switch is in the open (normally open) position therefore having no current passing through it until a switch to close the circuit and allow current to flow. Normally closed has current flowing at all times until the switch interrupts it stopping the flow of electricity.


If an inductor and a switch are connected in parallel through which the current will flow in an AC circuit?

A:The inductor does not allow ac signal to pass through. It blocks ac and passes dc. If the switch is open, then the ac signal wont pass. If the switch is closed, then the ac signal will pass through the switch.AnswerIt is incorrect to say that an inductor 'does not allow' the passage of an alternating current. An a.c. current will pass through an inductor, although the inductor will limit the value of that current due to the inductor's inductive reactance. Inductive reactance, which is expressed in ohms, is directly-proportional to the inductance of the inductor and to the frequency of the supply. The value of the current is determined by dividing the supply voltage by the inductive reactance of the inductor.If the switch is connected in parallel with the inductor, then closing the switch will apply a direct short circuit across the inductor, and the resulting short-circuit current will cause the circuit's protective device (fuse or circuit breaker) to operate.


What are the uses of the relay?

They can be used as a kind of safety switch to allow a circuit with a small current through to switch on a circuit that will hve a larger current flowing through it.


What is the purpose of the voltage selector switch?

The voltage selector switch is designed to allow users to choose the appropriate voltage setting for their device based on the power supply available in their location. This is particularly important for devices that can operate at multiple voltages, ensuring compatibility and preventing damage due to overvoltage or undervoltage. By selecting the correct voltage, users can enhance the device's performance and longevity while maintaining safety.


What would cause your 93 F250 wipers to stay on you replace the switch and motor. I have changed the switch motor and relay. The intermittant delay does not work. Where is the governor?

It has to be the switch. It is what controls the power to the wiper motor. If the switch is fried again I would check that the relay (or that the fuse is the right amperage) has been fried in the open position somehow. This would allow unchecked voltage to fry its way through your switch to power the motor. I hope this helps you some.


What are the differences between closed cell foam and open cell foam?

Closed cell foam has closed, sealed cells that do not allow air or water to pass through, making it more rigid and water-resistant. Open cell foam has interconnected cells that allow air and water to pass through, making it softer and more flexible.


Why use a relay switch instead of a normal switch?

A relay switch is used instead of a normal switch when controlling high-voltage or high-current devices with a low-voltage control signal, enhancing safety and protecting delicate components. Relays can also allow for remote operation and automation in circuit design, enabling multiple circuits to be controlled by a single switch. Additionally, they can isolate different parts of a circuit, reducing the risk of interference and damage.