## How do you make a circuit for a school project?

Build a Circuit

1. Small light bulb (or a flashlight bulb)
2. 2 batteries (with the correct voltage for your light bulb)
3. 2 alligator clip wires or aluminum foil*
4. Paper clips.
5. Electrical tape (ScotchÂ®tape also works)
6. Bulb holder (optional)
7. Battery holders (optional**)

## How do you create a circuit?

How to Make a Simple Circuit

1. Step 1: Cut two pieces of aluminum foil and fold them into strips.
2. Step 2: Tape one to the positive end of the battery and the other to the negative end.
3. Step 3: Touch one strip to the metal part of the bulb, just under the glass.
4. Step 4: Touch the other strip to the silver tip on the end of the bulb.

## How does a simple circuit work?

In the scientific model for this kind of simple circuit, the moving charged particles, which are already present in the wires and in the light bulb filament, are electrons. When it is connected to a complete circuit, electrons move and energy is transferred from the battery to the components of the circuit.

## Is load power in or out?

At the second device, the line is the power source coming in from the first device; the load is the wire going out to the third device on the circuit, and so on. The same meaning can apply to the device itself. The line side of an outlet is where you connect the incoming source power.

## How can you tell if a wire is load or line?

Tips for Identifying Wires in your Switch Wall Box

1. After removing the face plate, turn the breaker back on.
2. Very carefully, press the voltage pen against each wire.
3. The pen will glow red when the wire is hot.
4. The wire that causes the pen to glow red is the hot wire; also known as the Line wire.
5. The wire that does not cause the pen to glow red is the Load wire.

## What happens if you switch line and load?

Here’s what happens when somebody wires a GFCI receptacle with the load and line wires reversed: The GFCI will work, in the sense that you can plug in a hair dryer and the hair dryer will blow hot air. But when you push the little “test monthly” button, and the “reset” button pops out, the receptacle stays live.

## What happens if you switch hot and load wires?

If the load and line wiring gets messed up, a ground fault (radio in the tub) won’t trip the GFCI. This happens when the hot and neutral wires get flipped around at an outlet, or upstream from an outlet. Reversed polarity creates a potential shock hazard, but it’s usually an easy repair.

## What color is the load wire?

The color for the Line wire is usually black and the Load wire is usually red, black, or blue (less common).

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## What happens if you connect a hot wire to a neutral wire?

If the hot wire touches the metal casing, then the electricity will now flow through the ground wire instead. If the hot wire comes into contact with both the neutral and the ground, then it will flow through both wires back to the source but as the ground has less resistance more current will flow through it.

## Why is there no voltage on a neutral wire?

In the electric power grid, “neutral” is ground, by definition. So the voltage of the neutral wire is always zero… By definition. It takes voltage to start the current flow, but once the current is flowing in the coil, no voltage is needed to keep it flowing.

## What happens when neutral touches ground?

The neutral is always referenced to ground at one, and ONLY one, point. If you touch the neutral to ground anywhere else, you will create the aforementioned ground loop because the grounding system and the nuetral conductor are now wired in parallel, so they now carry equal magnitudes of current.

## Can a neutral wire be connected to ground?

No, the neutral and ground should never be wired together. This is wrong, and potentially dangerous. When you plug in something in the outlet, the neutral will be live, as it closes the circuit. However, if there is something wrong and the neutral is disconnected, it will make the appliance dangerous.